Complete List of Web Accessibility Evaluation Tools

Please read the Getting Started and Disclaimer sections of the Overview page.

Tools List Sorted by Tool Name

A-Checker (version 0.8.6): ATRC University Of Toronto, 1 January 2006
Description: Online accessibility checker that tests web pages for conformance to various accessibility guidelines.
Language: English, Italian
Guidelines: WCAG 1.0, Section 508, Stanca Act, BITV
Assistance: Generating Reports, Step-by-step evaluations
Automatic checking: Single pages, Restricted pages
Formats: HTML, XHTML
Online service: Online checker
Reports: HTML
License: Free Software, Open Source
A-Prompt (version 1.06): ATRC University Of Toronto, 1 December 2004
Description: Accessibility evaluation and repair tool.
Language: English, French, German, Korean
Guidelines: WCAG 1.0, Section 508, BITV
Assistance: Generating Reports, Step-by-step evaluations
Automatic checking: Single pages
Repair options: Code modification
Formats: HTML, XHTML
Operating system: Windows
Reports: HTML
License: Free Software
Acc - an Accessibility Evaluator (version 1.0): , 24 August 2006
Description: Acc - an Accessibility Evaluator is a developing Firefox Extension, which is capable of evaluating and reporting some accessibility criteria. Acc - an Accessibility Evaluator can spot some basic explicit HTML-coding flaws like other tools, but it includes features like: Visual layout extraction implementation; Basic scalability test; Deeply nested layout tables test; Skip to Main Content link check; Navigation consistency check compared to previous page; and Scripted page evaluation.
Language: English
Assistance: Generating Reports, In-page feedback
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Browser: Mozilla/Firefox
Reports: HTML
License: Free Software
AccessColor (version 1.0): AccessKeys.org, 10 August 2006
Description: AccessColor is a free online tool which analyses the internal and external CSS of a web page to test the colour contrast and colour brightness between the text and background colours. It uses the algorithm recommended by the W3C at http://www.w3.org/TR/AERT#color-contrast.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Automatic checking: Single pages
Formats: CSS, HTML
Online service: Online checker
Reports: HTML
Accessibility Check (version 1.0): etre, 1 August 2005
Description: Etre's Accessibility Check evaluates your page against subset of the WAI guidelines. These guidelines form the basis of most global legislation relating to accessibility.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Accessibility color wheel (version 1.0): Description: A tool that helps in the choice of a color pair (text/background) to use in a web page. It simulates three kinds of colour blindness and it shows the result of w3c algorithms, that compute contrast and difference of brightness, applied to the chosen colours. The accessibility color wheel shows if the color pair is "good" from an accessibility point of wiew.
Language: English
Guidelines: WCAG 1.0
Assistance: Step-by-step evaluations
Online service: Online checker
License: Open Source
Accessibility Wizard (version 1.0): Binary Blue, 24 June 2003
Description: The Accessibility Wizard is a tool for web developers and project teams. It breaks down the WAI Checkpoints into individual tasks for each job role in a development team. Every member of a development team is directed to implement the WAI Checkpoints at a specified conformance level (A,AA or AAA). This is a sure way of meeting accessibility conformance. A web client that supports the Flash 6 (or higher) plugin is the minimum requirement to use the wizard.
Language: English
Guidelines: WCAG 1.0
Assistance: Step-by-step evaluations
Runtime: Flash
License: Free Software
AccessValet (version 1.2): WebThing Ltd
Description: Analyses HTML and XHTML pages. Reports deprecated and invalid markup, and violations of accessibility guidelines. Supports a choice of detailed report formats for developers (including full cross-referencing of warnings to the markup and to the guidelines tested), and executive summary reports for management/QA.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, In-page feedback
Automatic checking: Single pages
Repair options: Code modification
Formats: HTML, XHTML
Online service: Online checker, Server installation
Operating system: Windows, Linux
Reports: HTML, XML, EARL
API interface: C / C++ / C#
License: Trial or Demo, Commercial
AccMonitor (version CS2 1.0.0.21): HiSoftware, 1 January 2005
Description: AccMonitor by HiSoftware is designed for Web site Accessibility Management. AccMonitor Server provides an enterprise test management system that enables validation of content for compliance with standards-based and organizational policies. AccMonitor provides a comprehensive interface for testing content against standards for quality, search and accessibility. It monitors the accessibility status of an entire Web site or a subdirectory of the site around the clock for WCAG priorities 1 to 3 as well as section 508 requirements. You can send email alerts to any number of recipients, or get results provided as EARL. AccMonitor can test Web Sites around the clock and report Accessibility issues based on development, content management requirements and scheduling.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback, Page transformation
Automatic checking: Single pages, Page groups, Restricted pages
Repair options: Code modification
Formats: CSS, HTML, XHTML, PDF, SVG
Online service: Server installation
Operating system: Windows
Reports: HTML, XML, EARL, CSV
License: Commercial, Enterprise
AccRepair (version DS2 2005/8.x): HiSoftware
Description: AccRepair by HiSoftware provides for the verification and correction of Accessibility policy and standards required for Web sites. AccRepair supports the WCAG Guidelines at all three levels, as well as Section 508, and through the Usability Test Manager provides usability testing. AccRepair is designed to work as a standalone client or integrated with Microsoft FrontPage, Microsoft Office 2000 and XP. AccRepair includes a Repair Library Editor allowing for team services and automated repairs of common accessibility errors, and all the verification functions of AccVerify, as well as Hi-Caption and metadata management. A developer's kit including API's and sample source code is available to allow extension or integration with other products. AccRepair provides out-of-the-box testing and reporting for Accessibility, Privacy, Metadata and Usability standards. It also allows users to define and conduct custom tests.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback, Page transformation
Automatic checking: Single pages, Page groups, Restricted pages
Repair options: Code modification
Formats: CSS, HTML, XHTML, PDF, SVG
Operating system: Windows
Authoring tool: FrontPage
IDE: Visual Studio
Runtime: .NET
Reports: HTML, XML, EARL, CSV
License: Commercial, Enterprise
AccVerify (version DS2 2005/8.x): HiSoftware
Description: AccVerify implements programmatic verification and reports all errors/non-compliance with the standards, plus checklist for criteria that can't be verified programmatically. Verifies the all else fails text version. Differentiates between 508 and WCAG. It allows for a variety of report formats, including EARL, and provides an API for developers to incorporate it in other projects. AccVerify can run as a standalone product for Microsoft Windows, or as an extension to Mercury TestDirector and Microsoft's FrontPage, Office, and .NET server products. AccVerify provides ability to test transactional pages through script building technology. AccVerify provides out-of-the-box testing and reporting for Accessibility, Privacy, Metadata and Usability standards. It also allows users to define and conduct custom tests.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback, Page transformation
Automatic checking: Single pages, Page groups, Restricted pages
Repair options: Code modification
Formats: CSS, HTML, XHTML, PDF, SVG
Operating system: Windows
Authoring tool: FrontPage, Flash MX
IDE: Visual Studio
Runtime: .NET
Reports: HTML, XML, EARL, CSV
License: Commercial, Enterprise
Acrobat 7.0 Professional (version 7.0): Adobe
Description: Acrobat 7.0 Professional has a variety of accessibility checks for PDF accessibility: 1) the Acrobat "quick check" examines a PDF file for structure and tags to see if it has the information necessary to make it accessible as well as checking for inappropriate protection settings; 2) the Acrobat "full check" list errors and provides suggestions for how to fix them; 3) using the "read out loud" feature assists an assessment of access to all appropriate content and that the information is presented in an understandable order.
Language: English
Formats: PDF
Operating system: Windows
License: Commercial
aDesigner (version 1.10): IBM, 7 July 2004
Description: The aDesigner is a disability simulator that helps Web designers ensure that their pages are accessible and usable by the visually impaired. Web developers can use aDesigner to test the accessibility and usability of Web pages for low-vision and blind people. The tool looks at such elements as the degree of color contrast on the page, the ability of users to change the font size, the appropriateness of alternate text for images, and the availability of links in the page to promote navigability. The tool also checks the pages' compliance with accessibility guidelines.
Language: English, Japanese
Guidelines: WCAG 1.0, Section 508, JIS
Assistance: Generating Reports
Automatic checking: Single pages
Repair options: Code modification
Formats: HTML, XHTML
Operating system: Windows
Reports: HTML, XML
License: Trial or Demo, Commercial
Adobe PDF conversion: Adobe
Description: This conversion service will convert to Adobe PDF files that are in English and most West European languages to text or HTML. A URL for the PDF files needs to be provided. Alternatively, local PDF documents can be emailed to Adobe: to pdf2txt@adobe.com for coversion to plain text; to pdf2html@adobe.com for conversion to HTML.
Language: English
Repair options: PDF to HTML
Online service: Hosted service
License: Free Software
AnyBrowser (version iii): AnyBrowser.com
Description: Tools relevant for accessibility include viewing in various screen sizes and viewing with images are replaced by ALT text. Also available are HTML validation, link checking, search engine tools, and other browser compatibility tests.
Language: English
Assistance: Page transformation
Formats: HTML
Online service: Online checker
License: Free Software
ART Guide (version 1.1): UB Access, 30 March 2004
Description: The ART Guide - ART reviews sites for compliance with the international accessibility standards of the World Wide Web Consortium (W3C). ART also assesses sites against the accessibility requirements that the U.S. and other national governments demand for their Websites and for those of their vendors. Going beyond current technologies, ART also proposes clear and simple-to-implement solutions to possible violations of these standards.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports
Automatic checking: Single pages
Formats: HTML, XHTML
Online service: Online checker
License: Free Software
ART Simulator (version 1.1): UB Access, 30 March 2004
Description: The ART Simulator - simulates a site in different ways to help developers gauge how easily the disabled can use the site. The simulator, the first tool of its type, serves two critical purposes: It enables site owners and developers to both experience first-hand the barriers to accessibility faced by the disabled and to better understand how to improve disabled users experience.
Language: English
Guidelines: WCAG 1.0
Assistance: Page transformation
Formats: CSS, HTML, XHTML
Online service: Online checker
License: Free Software
Bobby (version 5.3): Watchfire, 14 March 2005
Description: Watchfire® Bobby™ 5.0 is a web accessibility desktop testing tool designed to help expose barriers to accessibility and encourage compliance with existing accessibility guidelines, including Section 508 of the U.S. Rehabilitation Act and the W3C's Web Content Accessibility Guidelines (WCAG). Bobby spiders through a website and tests to see if it meets accessibility requirements, including readability by screen readers, the provision of text equivalents for all images, animated elements and audio and video displays. During a scan, Bobby checks HTML against select accessibility guidelines and then reports on the accessibility of each web page.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports
Automatic checking: Single pages, Page groups, Restricted pages
Formats: HTML, XHTML
Operating system: Windows
License: Commercial
CC for Flash component (version 2.0.1): The Carl and Ruth Shapiro Family National Center for Accessible Media at WGBH, 21 June 2007
Description: The CC for Flash component is a free tool that developers can add to their Flash projects to provide the display of searchable, multi-language captions that are synchronized to Flash video, animation, or sound objects. The component works in the following authoring environments: Flash MX 2004, Flash 8, and Flash CS3 (ActionScript 2.0 projects only).
Language: English
Repair options: Captioning
Authoring tool: Flash MX
Runtime: Flash
License: Free Software
ccMP3Player (version 1.0.1): The Carl and Ruth Shapiro Family National Center for Accessible Media at WGBH, 21 June 2007
Description: ccMP3Player is a free Flash-based MP3 player that can be embedded in Web pages to play back MP3 audio files along with their corresponding captions. External caption files can be formatted in either DFXP or QTtext. Accessibility features have been built in for screen-reader users and those requiring keyboard access. ccMP3Player is viewable in browsers containing the Flash Player 8 (or higher) plug-in.
Language: English
Repair options: Captioning
Browser: Internet Explorer, Mozilla/Firefox, Safari
License: Free Software
ccPlayer (version 2.0.1): The Carl and Ruth Shapiro Family National Center for Accessible Media at WGBH, 21 June 2007
Description: ccPlayer is a free Flash video player that can be embedded in Web pages in order to display Flash video along with its corresponding captions. Captions can either be embedded in the video or contained in external DFXP- or QTtext-formatted files. ccPlayer also allows viewers to change to other caption languages that may be available in DFXP caption files. Accessibility features have been [built in] for [screen-reader] users and those requiring keyboard access. ccPlayer is viewable in browsers containing the Flash Player 8 (or higher) plug-in.
Language: English
Repair options: Captioning
Browser: Internet Explorer, Mozilla/Firefox, Safari
License: Free Software
Color Filter: AWARE
Description: Several filters to manipulate images and other file types to see how they may appear for other users.
Language: English
Formats: CSS
Online service: Online checker
Color Laboratory: AWARE Center
Description: This color laboratory allows you to select colors and see how they appear next to one another, and in various foreground/background combinations. It also allows you to see those colors as they might appear to color-blind users.
Language: English
Online service: Online checker
ColorDoctor (version 2.1): Fujitsu Limited, 18 January 2008
Description: ColorDoctor is a simulator that can check color accessibility. It converts any images displayed on the screen such as websites and other presentation contents into gray scale or colors that can be perceived by people with color blindness. This software was awarded the universal design award 08.
Language: English, Japanese
Guidelines: WCAG 1.0, Section 508, JIS
Operating system: Windows
Runtime: .NET
License: Free Software
Colorfield Insight: Colorfield
Description: Colorfield Insight is a Photoshop plug-in that allows designers to predict image legibility for color deficient viewers by accurately simulating color blindness. Allows designers to model and predict image legibility for color deficient viewers.
Language: English
Operating system: MacOS
Authoring tool: Photoshop
License: Commercial
ColorSelector (version 5.1): Fujitsu Limited, 18 January 2008
Description: ColorSelector can evaluate whether the selected color combinations between text and background are easily viewed by people with cataracts or color blindness at the term of developing websites and other presentation contents. Furthermore, it can display the most appropriate combination. In this manner, it assists in the creation of visual contents with a high level of accessibility. This software was awarded the universal design award 08.
Language: Chinese (Simplified), English, Japanese, Korean
Guidelines: WCAG 1.0, Section 508, JIS
Operating system: Windows, MacOS
Runtime: Java
License: Free Software
Colour Blindness Check: Q42, 11 March 2002
Description: Colour Blind Check is a little tool for people to test their webpages with. It re-colorizes any webpage you like into a palette that closely resembles the typical palette available to a person having a red/green color vision deficiency. (It approximates to Protanopia.)
Language: English
Guidelines: WCAG 1.0
Assistance: Page transformation
Online service: Online checker
License: Free Software
Colour Blindness Simulator (version 1.0): etre, 1 December 2005
Description: One in twenty people have some form of colour vision deficiency. Etre's Colour Blindness Simulator allows you to upload an image to experience it as colour blind users may.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Colour Check (version 1.0): etre, 1 December 2005
Description: Etre's Colour Check determines the colour difference and contrast between any two colours to maximumise readability.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Colour Contrast Analyser (version 1.0): Juicy Studio, 24 June 2003
Description: This colour contrast analyser is provided to allow you to check the contrast of two colours using the W3C's colour contrast algorithm (http://www.w3.org/TR/AERT#color-contrast) by specifying the colours directly. It calculates the difference in colour and the difference in brightness of the foreground and background colours, and indicates if they meet the threshold requirements.
Language: Brazilian Portuguese, English, Japanese, Spanish
Guidelines: WCAG 1.0
Assistance: Generating Reports
Online service: Online checker
License: Free Software
Colour Contrast Analyser (version 1.0): Vision Australia & WAT-C, 4 February 2005
Description: The Colour Contrast Analyser is a tool for checking foreground & background colour combinations to determine if they provide good colour visibility for conformance with Checkpoint 2.2 of the Web Content Accessibility Guidelines 1.0. It determines colour visibility based on algorithms suggested by the W3C - Two colors are considered to provide good colour visibility if the brightness difference and the colour difference between the two colors are greater than a set range. In addition to analyzing contrast for normal vision it also calculates results for three types of colour blindness (Protanopia, Deuteranopia and Tritanopia).
Language: Brazilian Portuguese, Bulgarian, Chinese (Simplified), Chinese (Traditional), Czech, Dutch, English, Finnish, French, German, Italian, Japanese, Polish, Spanish
Guidelines: WCAG 1.0, Section 508, BITV
Assistance: In-page feedback
Operating system: Windows
License: Free Software
Colour Contrast Analyser (version 2.0): WAT-C, 15 May 2007
Description: It is primarily a tool for checking foreground & background colour combinations to determine if they provide good colour visibility. It also contains functionality to create simulations of certain visual conditions such as colour blindness.
Language: English, French, Italian
Assistance: Generating Reports
Formats: CSS, HTML, XHTML, PDF, Images, SMIL, SVG
Operating system: Windows
Reports: Text
License: Free Software
Colour Contrast Analyser Firefox Extension (version 0.1): Juicy Studio, 12 February 2006
Description: The Colour Contrast Analyser Firefox extension lists colour combinations used in the document in a table that summarises the foreground colour, background colour, luminosity contrast ratio, and the colour difference and brightness difference used in the algorithm suggested in the 26th of April 2000 working draft for Accessibility Evaluation and Repair Tools (AERT). Each element is also listed with its parent elements, and class and id attribute values when specified to make it easier to locate the elements.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Browser: Mozilla/Firefox
License: Free Software, Open Source
com tab (version 1.5): Pierre Frederiksen, 5 June 2007
Description: The toolbar is an add-on to FireFox and can be used to: reveal "headers" and "id" complex data table mark-up; create such mark-up either manually or automatically; and create a linear version of the data table content. Complex data table mark-up is needed for screen reader users in order to make sense of a complex data table. Screen readers support (in varying degree) complex mark-up.
Language: English
Assistance: Step-by-step evaluations, In-page feedback, Page transformation
Repair options: Code modification
Formats: HTML, XHTML
Browser: Mozilla/Firefox
Reports: HTML
License: Free Software
Common Look and Feel Self-Assessment Guide: Treasury Board of Canada Secretariat
Description: The CLF Self-Assessment Guide has been developed by the Treasury Board Secretariat for departments and agencies to determine the compliance level of their Internet Web sites with the Common Look and Feel Standards.
Language: English
Guidelines: WCAG 1.0
Formats: HTML, XHTML
CommonLook Website Testing Tool: NetCentric Technologies Inc.
Description: NetCentric Technologies' CommonLook family of software products is designed to greatly simplify the process of verifying the compliance of websites and PDF documents with accessibility and a wide variety of other standards (including Section 508, Common Look and Feel and W3C standards). 'Out of the box' and without customization they provide an immediate solution.
Language: English, French
Guidelines: WCAG 1.0
Assistance: Generating Reports
Automatic checking: Single pages
Formats: CSS, HTML, XHTML, PDF
Operating system: Windows
License: Commercial
Contrast Checker (version 1.0): Q42, 20 August 2004
Description: The Q42 contrast checker tool enables you to compare the contrast in a web page. This is done by comparing the text color with its background for each element with contents. The contrast is determined by comparing the brightness of the foreground and background color, and the absolute color difference. Note that this is only a tool for improving accessibility, not a strict guideline. If you're not sure about the results, you should consult other methods. There are two ways to integrate the contrast checker in to your browser - as a bookmarklet (also known as a favelet) to your browser, or on the context menu (this will provide you with tight browser integration, even enabling you to run the contrast checker in frames).
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Formats: CSS, HTML, XHTML
Browser: Internet Explorer
License: Free Software
CSS Analyser (version 1.0): JuicyStudio, 1 June 2004
Description: This service has been provided to allow you to check the validity of your CSS against the W3C's validation service, along with a colour contrast test, and a test to ensure that relevant sizes are specified in relative units of measurement.
Language: English, Spanish
Guidelines: WCAG 1.0
Assistance: Generating Reports
Automatic checking: Single pages
Formats: CSS
Online service: Online checker
Reports: HTML
License: Free Software
Deque Ramp Ascend (version 5.0): Deque Inc., 27 January 2005
Description: Deque Ramp Ascend is a Web accessibility evaluation and repair tool. It checks for compliance against W3C-WCAG 1.0 and Section 508 standards. It combines robust algorithms with user input during evaluation. Evaluation can be configured to suit individual accessibility policies / practices. Guided / automated remediation covers all violations including n-dimensional tables, forms, skip navigation, missing alt tags and SMIL captioning. Reports are several and include listings of individual violations as well as summaries across checkpoints / Section 508 rules. Ramp is accessible with JAWS For Windows and has plug-ins for FrontPage, Dreamweaver and HomeSite.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Page transformation
Automatic checking: Single pages, Page groups, Restricted pages
Repair options: Code modification, Captioning
Formats: CSS, HTML, XHTML
Operating system: Windows, MacOS, Linux, Solaris
Authoring tool: Dreamweaver, FrontPage, HomeSite
Reports: HTML, XML
License: Commercial, Enterprise
Deque Ramp Grade (version 5.0): Deque Inc., 27 January 2005
Description: Deque Ramp Grade is a Web accessibility evaluation tool. It checks for compliance against W3C-WCAG 1.0 and Section 508 standards. It combines robust algorithms with user input during evaluation. Evaluation can be configured to suit individual accessibility policies / practices. Reports are several and include listings of individual violations as well as summaries across checkpoints / Section 508 rules. Ramp Grade is accessible with JAWS For Windows and has plug-ins for FrontPage, Dreamweaver and HomeSite.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Page transformation
Automatic checking: Single pages, Page groups
Formats: CSS, HTML, XHTML
Operating system: Windows, MacOS, Linux, Solaris
Authoring tool: Dreamweaver, FrontPage, HomeSite
Reports: HTML, XML
License: Commercial, Enterprise
Deque Ramp Personal Edition (version 5.0): Deque Inc., 27 January 2005
Description: Deque Ramp Personal Edition (PE) offers a Low cost way to learn about accessibility and test web pages for W3C WAI WCAG and Section 508 compliance one Web page at a time. This accessible tool has the same algorithms for evaluation as Ramp Ascend. Evaluation can be configured to suit individual accessibility policies / practices. Reports are several. It has plug-ins for FrontPage, Dreamweaver and HomeSite. Ramp Personal Edition is available for educational institutions, not for profit organizations and registered students of Web accessibility courses at no cost under Deque's One Accessible World Program. (Registration is required).
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Page transformation
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Operating system: Windows, MacOS, Linux, Solaris
Authoring tool: Dreamweaver, FrontPage, HomeSite
Reports: HTML, XML
License: Free Software, Commercial
Deque Undoc (version 2.01): Deque Inc., 3 June 2005
Description: Repurposes PDF documents into well-structured HTML and XML. Transforms embedded images into appropriate format, e.g., EPS, TIF, PSD or JPEG, GIF and PNG. Supports tagged and untagged PDFs. Output can be made accessible with Ramp Ascend.
Language: English
Guidelines: Section 508
Assistance: Page transformation
Repair options: PDF to HTML
Formats: CSS, HTML, XHTML, PDF
Operating system: Windows, MacOS, Linux
Reports: HTML, XML
License: Commercial
Deque Worldspace (version 1.03): Deque Inc., 11 October 2005
Description: A cross-platform, Java 2 Enterprise Edition driven collaborative solution provides fully automated accessibility evaluation and repair management for any organization. The Web based user interface is intuitive to use.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Page transformation
Automatic checking: Single pages, Page groups, Restricted pages
Repair options: Code modification, Captioning
Formats: CSS, HTML, XHTML, PDF
Online service: Server installation
Operating system: Windows, Linux, Solaris
Authoring tool: Dreamweaver
Runtime: Java
Reports: HTML, XML
License: Commercial, Enterprise
Doctor HTML (version v6.1): Imagiware, Inc.
Description: Doctor HTML is a Web page analysis tool which retrieves an HTML page and reports on any problems that it finds. The primary focus of this tool is to provide a clear, easy-to-use report of information that is relevant for improving your Web page.
Language: English
Formats: CSS, HTML
Online service: Online checker
Reports: HTML
drempelvrij.nl toolbar (version 1.0): Stichting Bartimeus Accessibility (with Vision Australia), 6 June 2005
Description: The drempelvrij.nl toolbar is a free and very useful tool which can be used to check the accessibility of a website. The toolbar can be used in combination with a step-by-step online guide and a checklist to check each of the 16 guidelines of the Quality Mark drempelvrij.nl.
Language: Dutch
Guidelines: WCAG 1.0
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback, Page transformation
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Online service: Online checker
Browser: Internet Explorer
Reports: HTML
License: Free Software
EvalAccess (version 2.0): Laboratory of HCI for Special Needs - UPV/EHU, 9 February 2006
Description: EvalAccess 2.0 is an on-line web accessibility evaluation tool which has been developed using Web Service technology. Due to its architecture it can be easily integrated into other applications such as authoring tools. This tool provides different methods for evaluating web accessibility: evaluation of a single web page, evaluation of a web site and evaluation of HTML mark-up. It returns a complete report of errors as a result of the evaluation.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Automatic checking: Single pages, Page groups
Formats: HTML
Online service: Online checker
Reports: HTML, XML
License: Free Software
EveryEye: EveryEye Ltd
Description: EveryEye is a software tool for accessible design. If you are an interactive, software, or media content designer or publisher you can use EveryEye to see your designs the way older and colour-blind people see them. You can quickly see the difficulties they will experience and make sure you get them right for an extra 28% of the population.
Language: English
Assistance: Page transformation
Operating system: Windows
License: Commercial
Fangs: The Firefox Screen Reader Emulator (version 0.9.3): Peter Krantz, 6 June 2005
Description: This Mozilla Firefox extension creates a textual representation of a web page similar to how the page would be read by a modern screen reader.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations, Page transformation
Formats: CSS, HTML, XHTML
Browser: Mozilla/Firefox
Reports: HTML
License: Open Source
Flicker Rate Test for Gif Images (version 1): Renzo Giust - Crosscode, 15 June 2005
Description: The Flicker Test checks images in a web page for flickering, rate of flickering and colour contrast. This particularly affects people with Photosensitive Epilepsy. A URI can be entered in an input field and a report is generated with detailed reports on each image.
Language: English, Italian, Spanish
Guidelines: WCAG 1.0, Section 508, JIS, Stanca Act, BITV
Assistance: Generating Reports, Step-by-step evaluations
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Online service: Online checker
Reports: HTML
License: Free Software
Foreground/Background Color Contrast Analyzer (version 1.2): cactusflower.org, 22 April 2006
Description: Calculates Foreground and Background color contrast and difference per W3C algorithms. This is a web-based, platform independant tool. It requires that Javascript is enabled in your browser.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Online service: Online checker
Reports: HTML
License: Free Software
Functional Accessibility Evaluator (version 0.8.4): University of Illinois at Urbana/Champaign, 25 November 2005
Description: The Functional Accessibilit Evaluator analyzes web resources for markup that is consistent with the use of DRES/CITES HTML best practices for development of functionally accessible web resources and resources that support interoperability. The HTML best practices are not a new standard, but rather a statement of techniques for implementation of the W3C Web Content Accessibility Guidelines and United States Federal Government Section 508 standards that not only improve accessibility for people with disabilities, but also the interoperability of web resources for everyone so all people benefit by having more options to access and use web resources.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, In-page feedback, Page transformation
Automatic checking: Single pages, Page groups
Formats: CSS, HTML, XHTML
Online service: Online checker
Operating system: Windows, MacOS, Linux, Solaris, BSD Unix
Reports: HTML, XML
License: Free Software, Open Source
Hera (version 2): Fundación Sidar, 1 January 2005
Description: A web-based system that performs some automated WCAG 1.0 testing, then guides a user through tests which need to be done or confirmed manually. Hera is multilingual (you can change on the fly), and a translation interface is available to easily add new languages.Hera development is ongoing, and is mostly in spanish. The system is written in PHP and is available for adaptation under the GPL open-source license.
Language: Danish, English, French, Galician, German, Italian, Portuguese, Romanian, Serbian, Spanish
Guidelines: WCAG 1.0
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback, Page transformation
Automatic checking: Single pages
Formats: CSS, HTML, XHTML, PDF
Online service: Online checker
Browser: Internet Explorer, Mozilla/Firefox, Opera
Reports: HTML, EARL
License: Free Software, Open Source
Hermish: Gareth Slinn, 18 November 2005
Description: HTML accessibility checker.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports
Automatic checking: Single pages
Formats: CSS, HTML
License: Free Software
Hi-Caption Studio (version 8.0): HiSoftware, 20 December 2005
Description: From HiSoftware. Hi-Caption Studio 8 provides users with the ability to create, test and mange captioning for their Windows Media, RealOne Player, and QuickTime productions. It also integrates the ability to test, remediate and caption Macromedia Flash MX 2004 and Macromedia Flash Professional 8 (now part of Adobe), presentations directly within the Flash authoring tool. Also available in Spanish (Castellano)
Language: English, Spanish
Repair options: Captioning
Formats: SMIL
Operating system: Windows
Authoring tool: Flash MX
Reports: HTML, XML
License: Commercial
HiSoftware Page Tester: HiSoftware, 1 June 2005
Description: The portal based testing service, powered by AccMonitor Compliance Server, allows customers to get an immediate and ongoing "status" of their Web page content quality and accessibility status. It provides "out-of-the-box" testing and reporting for Accessibility, Alternative Text Quality, Privacy and Search Engine Optimization Standards. Users simply enter a URL and press a button to receive their browser based test result.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, In-page feedback
Automatic checking: Single pages
Formats: HTML
Online service: Online checker
Reports: HTML
License: Free Software, Commercial
HiSoftware® Cynthia Says™ Portal: HiSoftwareR, 14 March 2003
Description: The HiSoftware Cynthia Says Web portal is a web content accessibility validation solution, it is designed to identify errors in your content related to Section 508 standards and/or the WCAG guidelines. Unlike HiSoftware's Desktop Software, AccVerify, this online test only validates one page at a time.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports
Automatic checking: Single pages
Formats: HTML, XHTML
Online service: Online checker
Reports: HTML
License: Free Software
HTML Validator for Firefox and Mozilla (version .77): Marc Gueury, 1 January 2006
Description: HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon in the status bar when browsing. The details of the errors are seen when looking the HTML source of the page. The extension is based on Tidy.
Language: English, French, German, Japanese, Spanish
Guidelines: WCAG 1.0
Assistance: Generating Reports, Step-by-step evaluations
Automatic checking: Single pages
Repair options: Code modification
Formats: HTML, XHTML
Browser: Mozilla/Firefox
License: Free Software, Open Source
HTMLShlEx (version 1.1): Wrong HTML, 1 February 2004
Description: This tool is Windows shell extension for HTML Documents. After it is installed, a page's html file can be up-loaded to some validators from the right-click menu.
Language: Japanese
Formats: CSS, HTML, XHTML
Operating system: Windows
License: Free Software
IBM Rule-based Accessibility Validation Environment (RAVEn) (version 2.0.0): IBM, 28 February 2007
Description: The IBM Rule-Based Accessibility Validation Environment (RAVEN) is an innovative suite of tools for inspecting Java and web rich-client graphical user interfaces (GUIs) and validating them for accessibility. Non-invasive techniques, like Aspect Oriented Programming (AOP), Introspection, and the Java Reflection API, are used to validate pre-existing GUIs at execution time rather than by examining source-code. This tool provides the ability to: Validate your static web content and some DHTML content for accessibility; Inspect and validate your Eclipse plug-in in the current Eclipse workbench; Inspect and validate your plug-in (and/or Eclipse itself) in an Eclipse workbench running in a separate JVM; Inspect and validate your Java application running in a separate JVM; Validate GUI components under development from the Java Perspective; Launch, test, and use RAVEN to validate Eclipse plug-ins from your development environment using the Runtime Workbench ; Define your own validation rules via external XML files; Persist validation reports.
Language: English
Assistance: Generating Reports, Step-by-step evaluations
Automatic checking: Single pages
Formats: HTML, XHTML
Operating system: Windows
IDE: Eclipse
License: Free Software
Illinois Accessible Web Publishing Wizard (version 2.1): University of Illinois at Urbana/Champaign, 1 January 2005
Description: The Illinois Accessible Web Publishing Wizard for Microsoft® Office provides a simple way to create highly accessible and standards compliant web versions of Microsoft Office documents (Word, PowerPoint, Excel) that are more accessible and usable by everyone, including people with disabilities. The HTML generated by the Wizard supports everyone from legacy browsers and slow Internet connections to the needs of blind users with screen readers. The Wizard does this through the support of W3C XHTML, CSS, & Web Content Accessibility Guidelines (WCAG) and the US federal government's Section 508 accessibility requirements.
Language: English
Repair options: Word to HTML, Excel to HTML, Powerpoint to HTML
Operating system: Windows
License: Trial or Demo, Commercial
Image Analyser (version 1.0): Juicy Studio, 14 July 2003
Description: This service examines all images found on a web page to check for any accessibility issues. The width, height, alt, and longdesc attributes are examined for appropriate values.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Formats: HTML, XHTML
Online service: Online checker
License: Free Software
imergo® (version 1.2): Fraunhofer Institute for Applied Information Technology (FIT), 1 October 2004
Description: imergo® is a standards compliance and quality assurance tool targeted to industrial Internet portals from the public and private sector. It offers: Reliable persistence backend: rules, evaluated documents and project configuration files are stored in a RDBMS database; Project management: project progress can be monitored in combination with the implemented reporting capabilities; Large scale validation of XML and (X)HTML documents for big Internet portals. The tool validates also CSS (Cascading Style Sheets); Powerful, flexible and configurable crawler; Identification of broken links; Easy implementation and configuration of evaluation rules, flexible composition of evaluation rule-sets; Integration into Content Management Systems.
Language: English, German, Spanish
Guidelines: WCAG 1.0, Section 508, BITV
Assistance: Generating Reports
Automatic checking: Single pages, Page groups, Restricted pages
Formats: CSS, HTML, XHTML
Operating system: Windows, MacOS, Linux
Runtime: Java, SOA
Reports: HTML, XML, EARL
API interface: Java, Web Service
License: Commercial, Enterprise
InFocus Desktop (version 4.2.2): SSB & BART Group, 30 September 2002
Description: Accessibility testing software that assists in repairing content.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations
Automatic checking: Single pages
Formats: HTML
Operating system: Windows
Reports: HTML
License: Commercial
InFocus Enterprise (version 1.2.2): SSB & BART Group, 30 September 2002
Description: InFocusT Enterprise is an automated web accessibility manager for administrators and compliance managers. Its simple but powerful web client delivers detailed reports for scheduled or on-demand tests.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback
Automatic checking: Single pages, Page groups, Restricted pages
Formats: CSS, HTML, XHTML
Online service: Server installation
Operating system: Windows, MacOS, Linux, Solaris
Reports: HTML
API interface: SQL
License: Commercial, Enterprise
Kontrasttest: , 23 April 2004
Description: Checks color difference and brightness difference according to http://www.w3.org/TR/AERT#color-contrast. Colors adjustable with sliding controllers (scroll bars). Can be used with both mouse and keyboard. Direct input of hexadecimal values possible. Requires Javascript. Works with IE >= 5.0, IE Mac (5.2), Geckos >= 1.02; Opera >= 7, Safari >= 1.2, Konqueror. German explanation, but easy to understand without.
Language: German
Guidelines: WCAG 1.0, BITV
Assistance: In-page feedback
Online service: Online checker
Operating system: Windows, MacOS, Linux
License: Open Source
Lift For Dreamweaver (version 2.1): UsableNet, 8 December 2005
Description: Accessibility testing software that is integrated into Dreamweaver.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports
Automatic checking: Single pages
Formats: HTML
Operating system: Windows, MacOS
Authoring tool: Dreamweaver
License: Commercial
Lift For Front Page (version 1.1.2): UsableNet, 8 December 2005
Description: Accessibility testing integrated with FrontPage.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports
Automatic checking: Single pages
Formats: HTML
Operating system: Windows
Authoring tool: FrontPage
License: Commercial
Lift Machine (version 1.9): UsableNet, 8 December 2005
Description: LIFT Machine is a server-based application that automatically scans internal and external websites for over 140 quality, accessibility, and usability issues.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports
Automatic checking: Single pages, Page groups, Restricted pages
Formats: HTML
Online service: Server installation
Operating system: Linux, Solaris
Reports: HTML
License: Commercial, Enterprise
Lift Online: UsableNet, 8 December 2005
Description: Accessibility and Usability testing solution
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports
Automatic checking: Single pages
Formats: HTML
Online service: Hosted service
Operating system: Windows, MacOS, Linux, Solaris, BSD Unix
Reports: HTML
License: Commercial
LIFT Text Transcoder: UsableNet, 8 December 2005
Description: Creates a text equivalent of an HTML page.
Language: English
Assistance: Page transformation
Formats: HTML, XHTML
Operating system: MacOS, Linux, Solaris, BSD Unix
License: Commercial
Luminosity Contrast Ratio Analyser (version 0.1): Juicy Studio, 13 November 2005
Description: The Luminosity Contrast Ratio Analyser (Beta) enables allow foreground and background colour combinations to be tested against the suggested luminosity contrast ratio algorithm (http://juicystudio.com/article/luminositycontrastratioalgorithm.php) being considered by the W3C for WCAG 2.0.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports, In-page feedback
Online service: Online checker
License: Free Software
Lynx Simulator (version 1.0): Infoaxia, 25 August 2004
Description: Lynx Simulator is an online free transformation tool which allows users to simulate a web page and see how it would look when rendering by a text browser Lynx. In terms of accessibility, you can use this simulator for checking accessibility aspects such as alternative text and reading order. You'll be able to find some critical issues without screen readers.
Language: Japanese
Assistance: Page transformation
Formats: HTML, XHTML
Online service: Online checker
License: Free Software
Lynx viewer: DJ Delorie, 26 December 1999
Description: Simulates how a page will look in the Lynx text browser. Links on the page can be activated. If you follow links in the resulting page, they will also be filtered through Lynx viewer. It also handles frames the way Lynx does. However, doesn't not give menu of the ALT text or URL's of AREA elemnts like lynx does. Perl Source is posted at the site. Can only be used on a site that the user has file upload access to.
Language: English, French
Assistance: Page transformation
Online service: Online checker
License: Free Software, Open Source
Lynx viewer: Yellowpipe Internet Services
Description: The Lynx Viewer allows webmasters to see what their pages will look like when viewed with Lynx, a text-mode web browser. It is also presumably, how search engines see your site. In addition to that, it can help determine if web pages are accessible to the vision impaired. No restrictions of use
Language: English
Online service: Online checker
Media Access Generator (MAGpie) (version 2.0.3): The Carl and Ruth Shapiro Family National Center for Accessible Media at WGBH, 21 June 2007
Description: MAGpie is a free JAVA-based application for creating captions and audio descriptions for QuickTime, Real, Flash (DFXP-format), and Windows Media content. MAGpie is available for use on both the Windows and Mac OS X platforms.
Language: English
Repair options: Captioning
Operating system: Windows, MacOS
Runtime: Java
License: Free Software
Mozilla/Firefox Accessibility Extension (version 0.99.1.1851): University of Illinois at Urbana/Champaign, 25 November 2005
Description: The Mozilla/Firefox Accessibility Extension adds features to Mozilla or Firefox to make it easier for people with disabilities to view and navigate web content based on the structural markup used to create the web page. The Mozilla/Firefox accessibility extension can be used directly by everyone to navigate the structure of a HTML web resource. It can be used by authors to check their structural markup to make sure it matches the actual content structure of the resource.
Language: English, Spanish
Guidelines: WCAG 1.0, Section 508
Assistance: In-page feedback, Page transformation
Formats: HTML, XHTML
Browser: Mozilla/Firefox
License: Free Software, Open Source
NetMechanic: Keynote NetMechanic
Description: Using Keynote NetMechanic services you can improve the functional integrity of your Web site and optimize your site to be reached by more potential customers.
Language: English
Assistance: Page transformation
Formats: HTML
Online service: Online checker
Reports: HTML
NIST WebMetrics Tool Suite: NIST, 1 February 2003
Description: Uability and accessibility testing tools for websites: Web Static Analyzer Tool (WebSAT) - checks HTML against typical usability guidelines. Web Category Analysis Tool (WebCAT) - helps a usability engineer with web category analysis/card sort, Web Variable Instrumenter Program (WebVIP) instruments a website to log of user interaction, Framework for Logging Usability Data (FLUD) - a file format and parser for representation of user interaction logs, FLUDViz - produces a 2D visualization of a single user session, VisVIP - produces a 3D visualization of user navigation paths, TreeDec - adds navigation aids to website pages. Note: WebMetrics project is no longer actively supported.
Language: English
Assistance: Generating Reports
Automatic checking: Single pages
Formats: HTML
Operating system: Windows, Linux
Browser: Internet Explorer, Mozilla/Firefox
License: Open Source
Ocawa (version 2): Urbilog/France-Telecom, 1 October 2002
Description: Ocawa runs accessibility tests based on the W3C Web Content Accessibility Guidelines using a built-in expert system. The Ocawa website offers free single or multiple page site audits with output reports indicating all inaccessible aspects of a page via precise highlighting of the page source. For large clients and intranet facilities, an Ocawa Server can be installed for unlimited testing. Shortly, a new version of Ocawa (V2.5) will display the French ADAE rules or the WAI rules more explicitly in the reports. Ocawa was developped by Urbilog and France Telecom R & D.
Language: English, French
Guidelines: WCAG 1.0
Assistance: Generating Reports, In-page feedback
Automatic checking: Single pages, Page groups
Formats: HTML
Online service: Online checker, Hosted service, Server installation
Reports: HTML
License: Trial or Demo, Commercial
Office 2000 HTML Filter (version 2.0): Microsoft, 1 January 2000
Description: The Office HTML Filter is a tool you can use to remove Office-specific markup tags embedded in Office 2000 documents saved as Hypertext Markup Language (HTML). Once you have completed editing an HTML document in Word 2000 or Excel 2000, you can use the Office HTML Filter to remove the Office-specific markup tags from the final copy of the HTML document. Features of V2.0 include: control over which types of markup tags are removed; export a cascading style sheet file based on a Word 2000 document; copy any fragment of a Word document as HTML.
Language: English
Repair options: Word to HTML
License: Free Software
Page Valet: WebThing Ltd
Description: Formal validation of HTML and XML, based on an Apache module (available under the GPL). Choice of report formats including cross-referencing errors to the code. Backend parsers supported are OpenSP (SGML/HTML, the same as the W3C validator) and Xerces (offering full XML support).
Language: English
Assistance: Generating Reports
Automatic checking: Single pages, Restricted pages
Formats: HTML, XHTML, SMIL, SVG
Online service: Online checker, Server installation
Reports: HTML, XML, EARL
License: Free Software, Open Source
PEAT - Photosensitive Epilepsy Analysis Tool (version 0.2 (beta)): Trace R & D Center, University of Wisconsin-Madison, 13 April 2006
Description: Photosensitive Epilepsy Analysis Tool (PEAT) is a free, downloadable tool, available from the Trace Center at the University of Wisconsin-Madison that allows web content to be tested for compliance with these guidelines. The tool creates a recording of a computer monitor as you use it. With this screen capture as input, PEAT conducts luminance flash and red flash evaluations to determine risk of seizure-provoking content. The analysis uses algorithms developed specifically for web and computer applications by the Trace Center, Dr. Graham Harding, and Cambridge Research Systems working together, and is based on Dr. Harding's extensive research on photosensitive seizure disorders.
Language: English
Assistance: Generating Reports
Automatic checking: Single pages
Operating system: Windows
License: Free Software
Readability index calculator: Peter Krantz, 9 September 2005
Description: A simple tool where you can calculate a readability index score for a text of your choice. The calculator uses the following formulas: English: Flesch-Kincaid reading ease and grade level; Spanish: Fernandez Huerta; French: Kandel & Moles; Swedish, Danish: LIX.
Language: Danish, Dutch, English, French, Spanish
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Online service: Online checker
Operating system: Windows, MacOS, Linux, Solaris, BSD Unix
Reports: HTML
License: Free Software
Readability Test (version 1.0): Juicy Studio, 20 January 2003
Description: The Readability Test uses the Gunning Fog, Flesch Reading Ease, and Flesch-Kincaid reading level algorithms to help you determine how readable your content is. Reading level algorithms only provide a rough guide, as they tend to reward short sentences made up of short words. However, they can give a useful indication as to whether you've pitched your content at the right level for your intended audience.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports, In-page feedback
Formats: XHTML
Online service: Online checker
License: Free Software
Reading Effectiveness Tool: Clear Language and Design (CLAD)
Description: The tool helps to to find out if a draft manuscript is at the right Grade Reading Level for the intended audience, by asking a series of questions. It is based on the Simple Measure Of Gobbledegook (SMOG) readability formula.
Language: English
Assistance: Generating Reports
Online service: Online checker
Reports: HTML
Reading Level Calculator: Linda Wasmer Andrews
Description: The Reading Level Calculator is a web tool based on the SMOG readability formula. This form relies on client-side scripting to calculate the reading level.
Language: English
Assistance: Generating Reports
Online service: Online checker
Reports: HTML
Relaxed HTML Validator: Petr Nlevka, 8 December 2005
Description: "Relaxed" is an easy to use HTML validator implementation which doesn't use the official W3C DTD's. It rather validates HTML documents using it's own schema definitions written in Relax NG with embedded Schematron patterns. This is an extremely expressive combination of languages which enables validation of additional restrictions which can not be expressed using DTD. This includes most restrictions specified in the W3C HTML 4.01 and the W3C XHTML 1.0 recommendation and some restrictions from WAI WCAG 1.0 Guidelines. "Relaxed" features also basic support for compound documents validation e.g. XHTML1.0+SVG1.1, XHTML1.0+MathML2.0 and XHTML1.0+MathML2.0+SVG1.1.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Formats: HTML, XHTML, SVG
Online service: Online checker
Reports: XML
License: Open Source
Silvinha - Accessibility Validator and Repair Tool (version 2.0): Acessibilidade Brasil, 17 August 2006
Description: The Silvinha software is a powerful multiplatform tool that checks accessibility of your HTML/XHTML pages using the W3C-WAI (WCAG) and e-GOV (Brazilian government accessibility rules for web) conformance. It can be installed inside any corporation network and able to perform full web server scan (any pages, groups of pages, full domains and tree level access) indicating errors that must be corrected and warnings which should be avoided. It also offers the fix and repair tool option (automatic and manual when the interference of the user is needed, ex. image alternative text) for all evaluated pages. Silvinha provides web updates (the user must have an internet connection) and full support during the period of one year, which can be extended for all our customers. We are upgrading the Silvinha tool to validate not only WCAG1 but as soon as possible, the next release of WCAG2(2006).
Language: Brazilian Portuguese, English, French
Guidelines: WCAG 1.0
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback, Page transformation
Automatic checking: Single pages, Page groups, Restricted pages
Repair options: Code modification
Formats: HTML, XHTML
Operating system: Windows, MacOS, Linux, Solaris, BSD Unix
Runtime: Java
License: Commercial
Site Valet (version 2.0.4): WebThing Ltd
Description: Spiders sites checking validity, accessibility, metadata and link integrity, saving results to an SQL database. Incorporates monitoring, change detection, and audit trail. Supports a wide range of reports: on the spot analysis, database queries, and historical, in detailed (developer) and executive summary (management) formats.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations
Automatic checking: Single pages, Page groups, Restricted pages
Formats: HTML, XHTML
Online service: Server installation
Reports: HTML, XML, EARL
API interface: C / C++ / C#
License: Commercial, Enterprise
SiteCheck: Siteimprove
Description: SiteCheck checks your entire site for errors in such areas as spelling, linking and accessibility. SiteCheck provides clear indications of why and where issues occur, and clear recommendations on how to fix them.
Language: Danish, English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback
Automatic checking: Page groups
Formats: HTML, XHTML, Images
Online service: Hosted service
Reports: HTML, PDF
License: Trial or Demo, Commercial
SiteMorse: SiteMorse
Description: SiteMorse offers a range of website testing services that require no setup, downloads or technical support to operate. SiteMorse measures performance, tests functions and checks compliance with web standards and accessibility. The service may be used as and when required, scheduled weekly/monthly, or used as a monitoring system running every few minutes 24/7.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Automatic checking: Single pages, Page groups, Restricted pages
Formats: HTML, XHTML
Online service: Online checker, Hosted service
Reports: HTML
License: Trial or Demo, Commercial, Enterprise
SortSite (version 2.0): Electrum, 14 January 2008
Description: SortSite checks entire sites for accessibility, usability, standards compliance, and quality issues. It's simple to use: just type in a URL and click Check. In addition to WCAG 1.0 and Section 508 accessibility, the tool also checks for usability; broken links and anchors; HTML and CSS validation; browser compatibility; and search engine guideline violations.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, In-page feedback
Automatic checking: Single pages, Page groups, Restricted pages
Formats: CSS, HTML, XHTML, PDF, Images
Online service: Server installation
Operating system: Windows
Reports: HTML, XML
License: Trial or Demo, Commercial
Style and Diction (version 1.09): Michael Haardt, 30 November 2005
Description: Diction identifies wordy and commonly misused phrases. Style analyses surface characteristics of a document, including sentence length and other readability measures.
Language: English, German
Operating system: Linux, Solaris, BSD Unix
License: Free Software, Open Source
SWAP (version 1.1): UB Access, 30 October 2004
Description: The SWAP Wizard - a next-generation turnkey technology enabling Website owners to quickly, efficiently and affordably ensure that their Websites are seamlessly accessible to the disabled community, to users of PDAs and other mobile devices. SWAP employs advanced technology with features and functionality available in no other accessibility package. Yet SWAP requires no prior knowledge of disabled-access issues. SWAP is also available in an Enterprise version.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Step-by-step evaluations, In-page feedback, Page transformation
Automatic checking: Single pages
Repair options: Code modification
Formats: CSS, HTML, XHTML, PDF, SVG
Operating system: Windows, Linux
Browser: Internet Explorer
License: Commercial
Table Inspector Firefox Extension (version 0.1): Juicy Studio, 18 January 2005
Description: Table Inspector is a Mozilla - Firefox extension to reveal the hidden accessibility features of data tables, such as summary, headers, axis, scope, and abbr.
Language: English
Guidelines: WCAG 1.0
Assistance: In-page feedback, Page transformation
Formats: HTML, XHTML
Browser: Mozilla/Firefox
License: Free Software
Tablin: W3C, 7 September 2000
Description: Tablin is a filter program that can linearize HTML tables and render them accordingly to preferences set by the presentation layer (e.g. the screen reader end-user).
Language: English
Assistance: In-page feedback
Automatic checking: Single pages
Repair options: Code modification
Formats: HTML
Online service: Online checker
Runtime: Java
Reports: HTML
TAW Online (version 3.08): Fundación CTIC, 17 November 2005
Description: TAW (Web Accessibility Test) is an online tool for the accessibility analysis of Web sites based on the W3C Web Content Accessibility Guidelines 1.0 (WCAG 1.0), which provides a useful in-page feedback. Its goal is to analyse the level of accessibility in the design and development of Web pages to allow access for all, regardless of their specific characteristics.
Language: English, Spanish
Guidelines: WCAG 1.0
Assistance: Generating Reports, In-page feedback
Automatic checking: Single pages
Formats: HTML, XHTML
Online service: Online checker
Reports: HTML
License: Free Software
TAW Standalone (version 3.08): Fundación CTIC, 17 November 2005
Description: This downloadable version of TAW is a multiplatform desktop software that complements and extends the functionality of TAW Online analyser performing several automatic tests and guiding users through those checks that require human judgement and must be evaluated manually. It follows the links of HTML documents so that it allows to examine a single page or the whole Web site. It is also possible to select the checkpoints to be verified and to create customized rules. Additionally, the tool can generate different types of test result reports.
Language: English, Spanish
Guidelines: WCAG 1.0
Assistance: Generating Reports, In-page feedback, Page transformation
Automatic checking: Single pages, Page groups, Restricted pages
Formats: HTML, XHTML
Operating system: Windows, MacOS, Linux, Solaris, BSD Unix
Runtime: Java
Reports: HTML, EARL
License: Free Software
TAW with a click (version 0.9.3): Fundación CTIC, 30 November 2005
Description: 'TAW with a click' is a Firefox extension that once installed will display an icon on your browser's status bar allowing you, by clicking the icon, to easily and quickly verify the accessibility of the Web sites visited, based in the W3C Web Content Accessibility Guidelines (WCAG 1.0), by means of the TAW Online service (www.tawdis.net).
Language: English, Spanish
Guidelines: WCAG 1.0
Assistance: Generating Reports, In-page feedback
Automatic checking: Single pages
Formats: HTML, XHTML
Browser: Mozilla/Firefox
Reports: HTML
License: Free Software
Tidy: Dave Raggett, 26 October 2005
Description: A quorum of developers have pitched in on a SourceForge project to maintain and further develop Dave Raggett's excellent HTML Tidy program. We have two primary goals. First, to provide a home where all the patches and fixes that folks contribute can be collected and incorporated into the program. Second, a library form of Tidy has been created to make it easier to incorporate Tidy into other software.
Language: English
Guidelines: WCAG 1.0
Automatic checking: Single pages
Formats: HTML, XHTML
Online service: Online checker
Operating system: Windows, MacOS, Linux, Solaris, BSD Unix
API interface: C / C++ / C#
License: Free Software, Open Source
TidyConf (version 1.3.9.3): Wrong HTML, 30 March 2004
Description: This tool is Japanese GUI front-end for HTML Tidy. In addition, this tool has some functions for confirmation of the HTML document.
Language: Japanese
Automatic checking: Single pages
Formats: HTML, XHTML
Operating system: Windows
License: Free Software
Torquemada (version 2.0): Fondazione Ugo Bordoni, 30 May 2002
Description: Torquemada offers to website developers a complete methodology for accessibility analysis which uses a tool for page checking that makes it possible to quickly identify which parts of a page are in error and the HTML code corresponding to these parts.
Language: English, Italian
Guidelines: WCAG 1.0
Assistance: Generating Reports, In-page feedback
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Online service: Online checker
Reports: HTML
Total Validator (version 4.4): Total Validator, 10 May 2005
Description: Total Validator in a 5-in-1 validation tool, comprising of a HTML validator, an accessibility validator (WCAG and US508), a spell checker, a broken link checker, and the ability to take screenshots with different browsers on different platforms.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: In-page feedback
Automatic checking: Single pages, Page groups, Restricted pages
Formats: HTML, XHTML
Online service: Online checker
Operating system: Windows, MacOS, Linux
Browser: Mozilla/Firefox
Runtime: Java
Reports: HTML
License: Free Software, Commercial
Truwex 2.0 (version 2.0): Erigami, 30 August 2007
Description: Truwex is a server application with a web interface. It is dedicated to web development teams and to corporate compliance managers. Truwex can be deployed on an individual computer, on a server, or rented as a hosted solution. Truwex is the only web quality management tool which uses a real instance of Internet Explorer to scan every page of a website automatically. Truwex shows detected issues on a web page screenshot and in the HTML code. Truwex validates web accessibility, privacy, quality.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations, In-page feedback
Automatic checking: Single pages, Page groups, Restricted pages
Formats: HTML, XHTML, Images
Online service: Hosted service, Server installation
Operating system: Windows
Reports: HTML
API interface: C / C++ / C#, SQL
License: Trial or Demo, Commercial, Enterprise
Uaw (version 1): Fundación Sidar / Mireia Ribera Turró, 1 July 2005
Description: A java tool incorporating the functionality of Tidy, and converting framesets to CSS-based layout. Uaw was developed by Mireia Ribera Turró. The system is written in Java and is available for adaptation under the GPL open-source license.
Language: Spanish
Assistance: Generating Reports, Page transformation
Automatic checking: Single pages
Repair options: Code modification
Formats: CSS, HTML, XHTML
Operating system: Windows, MacOS, Linux, Solaris, BSD Unix
Runtime: Java
Reports: HTML
License: Free Software, Open Source
Vischeck: Vischeck, Menlo Park, CA, 27 June 2001
Description: Vischeck is a way of showing you what things look like to someone who is color blind. You can try Vischeck online - either run Vischeck on your own image files or run Vischeck on a web page. You can also download programs to let you run it on your own computer.
Language: English, Japanese
Guidelines: WCAG 1.0, BITV
Assistance: Page transformation
Formats: CSS, HTML
Online service: Online checker
Authoring tool: Photoshop
License: Free Software, Open Source
Visolve (version 4.1): Ryobi System Solutions, 26 August 2005
Description: Visolve is software that transforms the computer display colors into the discriminable colors for various people with color blindness. One of its aims is to help people with color blindness guess a normal color. In addition to the color transformation, it provides the following two functions: the filtering darkens all colors other than the specified color, and the hatching draws different hatch patterns depending on color.
Language: English, Japanese
Assistance: Page transformation
Operating system: Windows, MacOS
Browser: Internet Explorer
License: Free Software, Commercial
Visual Impairment Simulator for Microsoft Windows (version 1.0): University of Illinois, 12 May 2005
Description: Provide almost real time full screen simulation of various visual impairments on Microsoft Windows 2000 or XP. Tool is useful for testing for the use of colors and learning about how people with visual impairments perceive information.
Language: English
Assistance: Page transformation
Formats: CSS, HTML, XHTML, PDF, SVG
Operating system: Windows
License: Free Software
W3C CSS Validation Service (version 2.0): W3C
Description: W3C CSS Validation Service is a free service that checks Cascading Style Sheets (CSS) in (X)HTML documents or standalone for conformance to W3C recommendations.
Language: English
Assistance: Generating Reports
Automatic checking: Single pages
Formats: CSS
Online service: Online checker
Reports: HTML
W3C Markup Validation Service (version 0.7.2): W3C, 20 February 2006
Description: a free service that checks Web documents in formats like HTML and XHTML for conformance to W3C Recommendations and other standards.
Language: English
Assistance: Generating Reports
Automatic checking: Single pages
Formats: HTML, XHTML
Online service: Online checker
Reports: HTML, EARL
WAEX online: Vicente Luque-Centeno, 19 April 2006
Description: WAEX is a Web Accessibility Evaluator in a single XSLT file. Such XSLT file can be applied (with any XSLT platform) to generate accessibility reports. These reports also include constraint evaluation of the XHTML specification not expressed/expressible in the DTD/Schema of XHTML.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Automatic checking: Single pages
Formats: HTML, XHTML
Online service: Online checker
Reports: HTML, XML, EARL
License: Free Software, Open Source
WAEX standalone: Vicente Luque-Centeno, 19 April 2006
Description: WAEX is a Web Accessibility Evaluator in a single XSLT file. Such XSLT file can be applied (with any XSLT platform) to generate accessibility reports. These reports also include constraint evaluation of the XHTML specification not expressed/expressible in the DTD/Schema of XHTML.
Language: English
Guidelines: WCAG 1.0
Assistance: Generating Reports
Automatic checking: Single pages
Formats: XHTML
Online service: Online checker, Hosted service, Server installation
Operating system: Windows, MacOS, Linux, Solaris, BSD Unix
Reports: HTML, XML, EARL
License: Free Software, Open Source
WAhelper (version 0.2): Brailcom, o.p.s., 11 January 2006
Description: WAhelper is a set of free software extensible tools for semiautomated checking of the accessibility features of web pages. It consists of an independent software library and an web based user interface for testing and making reports on web accessibility and managing web accessibility testing projects.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations
Automatic checking: Single pages, Page groups
Formats: CSS, HTML, XHTML
Online service: Online checker, Hosted service, Server installation
Reports: HTML
License: Free Software, Open Source
WAVE (version 3): WebAIM
Description: WAVE exposes errors and highlights content where accessibility considerations require human judgement(e.g. WAVE exposes alt text so a human evaluator can determine whether it is appropriate for the image). Icons are used as feedback elements within the web page being evaluated.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: In-page feedback
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Online service: Online checker, Server installation
Browser: Internet Explorer, Mozilla/Firefox, Netscape
Reports: HTML, XML, EARL
License: Free Software, Open Source
WDG HTML Validator: Liam Quinn, 1 January 2005
Description: The WDG HTML Validator validates against W3C HTML DTD's. Own DTDs to support non-standard HTML features can be added such as the EMBED element or the LEFTMARGIN attribute on BODY.
Language: English, French
Assistance: Generating Reports
Formats: HTML
Online service: Online checker
Operating system: Linux, Solaris, BSD Unix
License: Open Source
Web Accessibility Inspector (version 5.1): Fujitsu Limited, 18 January 2008
Description: Web Accessibility Inspector can determine whether your website can be easily viewed by the elderly and those with visual impairments. The criteria of Web Accessibility Inspector are based on W3C WCAG 1.0 and Fujitsu Web Accessibility Guidelines. It can evaluate not just HTML but also CSS (Cascading Style Sheets), and enables to diagnose at a high level of precision, including text size, line spacing, and the color of texts and backgrounds. This software was awarded the universal design award 08. The name of a Japanese version is WebInspector.
Language: Chinese (Simplified), English, Korean
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports
Automatic checking: Single pages, Page groups
Formats: CSS, HTML, XHTML
Operating system: Windows, MacOS
Runtime: Java
Reports: HTML, CSV
License: Free Software
Web Accessibility Self-Evaluation Tool (version 1): TechDis, 23 May 2005
Description: This simple web accessibility self-evaluation tool has been designed to provide website developers with a simple and pragmatic step-by-step approach to conducting an internal or self-evaluation. This tool is suitable for use with institutional websites, personal academic homepages and other information sites. However, this tool is not suitable on its own as a tool for the evaluation of e-learning or e-resource material. This tool has been designed to provide developers with a simple holistic overview of the accessibility of a website. The tool takes advantage of free online automatic evaluation tools, heuristic evaluation methods (where the reviewer is required to evaluate a site against a guideline or principle), and takes a methodical approach to identifying potential issues.
Language: English
Guidelines: WCAG 1.0
Assistance: Step-by-step evaluations
License: Free Software
Web Accessibility Toolbar (version 1.2): Vision Australia & WAT-C, 27 October 2005
Description: The Web Accessibility Toolbar has been developed to aid manual examination of web pages for a variety of aspects of accessibility. It consists of a range of functions that: identify components of a web page, facilitate the use of 3rd party online applications, simulate user experiences and provide links to references and additional resources.
Language: Chinese (Simplified), Chinese (Traditional), Danish, Dutch, English, French, German, Italian, Japanese, Korean, Spanish
Guidelines: WCAG 1.0, Section 508, BITV
Assistance: Generating Reports, Page transformation
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Browser: Internet Explorer
Reports: HTML
License: Free Software
Web Accessibility Toolbar [For Opera] (version 1.1): Web Accessibility Tools Consortium, 15 December 2006
Description: The Web Accessibility Toolbar has been developed to aid manual examination of web pages for a variety of aspects of accessibility. It consists of a range of functions that: 1.identify components of a web page; 2.facilitate the use of 3rd party online applications; 3.provide links to references and additional resources.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, In-page feedback, Page transformation
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Browser: Opera
Reports: HTML
License: Free Software, Open Source
Web Accessibility Toolbox (version 1.0.3): Infoaxia, 2 March 2005
Description: Web Accessibility Toolbox is a free toolbar for Firefox which allows users to do manual examination of web pages for a variety of aspects of accessibility. You can select multiple checkpoints as you want and check a web page with the selected checkpoints at the same time.
Language: Japanese
Guidelines: WCAG 1.0, JIS
Assistance: In-page feedback, Page transformation
Automatic checking: Single pages
Formats: CSS, HTML, XHTML
Browser: Mozilla/Firefox
License: Free Software
Web Compliance Manager (version 2.1): RedDot Solutions AG, 1 October 2004
Description: Web Compliance Manager is a product licensing imergo® technologies available as a stand-alone product, or integrated within RedDot's ECMS, which offers as well: Reliable persistence backend: rules, evaluated documents and project configuration files are stored in a RDBMS database; Project management: project progress can be monitored in combination with the implemented reporting capabilities; Large scale validation of XML and (X)HTML documents for big Internet portals. The tool validates also CSS (Cascading Style Sheets); Powerful, flexible and configurable crawler; Identification of broken links; Easy implementation and configuration of evaluation rules, flexible composition of evaluation rule-sets.
Language: English, German, Spanish
Guidelines: WCAG 1.0, Section 508, BITV
Assistance: Generating Reports
Automatic checking: Single pages, Page groups, Restricted pages
Formats: CSS, HTML, XHTML
Operating system: Windows, MacOS, Linux
Runtime: Java, SOA
Reports: HTML, XML, EARL
API interface: Java, Web Service
License: Commercial, Enterprise
Web Developer Extension (version 1.0.2): Chris Pederick, 31 January 2006
Description: The Web Developer extension adds a menu and a toolbar to the browser with various web developer tools. It is designed for Firefox, Flock, Mozilla and Seamonkey, and will run on any platform that these browsers support including Windows, Mac OS X and Linux.
Language: English
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, In-page feedback, Page transformation
Formats: CSS, HTML, XHTML
Browser: Mozilla/Firefox
Reports: HTML
License: Open Source
webagogo (version 1.0 beta): Webagogo, 8 October 2006
Description: Webagogo is a free online tool to test the quality of your website. It includes validators (for HTML, XHTML, CSS, RSS and P3P) and tests for accessibility, usability, speed, SEO, ... and a lot more! The stand-alone tools can be used to analyze single webpages.
Language: English
Guidelines: WCAG 1.0, Section 508, Stanca Act, BITV
Assistance: Generating Reports
Automatic checking: Single pages, Page groups
Formats: HTML, XHTML
Online service: Online checker
Reports: HTML
License: Free Software, Commercial
WebInspector (version 5.1): Fujitsu Limited, 28 September 2007
Description: WebInspector can determine whether your website can be easily viewed by the elderly and those with visual impairments. The criteria of WebInspector are based on JIS and Fujitsu Web Accessibility Guidelines For Japanese sites Version2.01. It can evaluate not just HTML but also CSS (Cascading Style Sheets), and enables to diagnose at a high level of precision, including text size, line spacing, and the color of texts and backgrounds. This software was awarded the universal design award 08. The name of a global version is Web Accessibility Inspector.
Language: Japanese
Guidelines: JIS
Assistance: Generating Reports
Automatic checking: Single pages, Page groups
Formats: CSS, HTML, XHTML
Operating system: Windows, MacOS
Runtime: Java
Reports: HTML, CSV
License: Free Software
WebKing (version 5.1): Parasoft, 7 October 2005
Description: WebKing is a comprehensive Web verification tool that automates the most critical Web verification practices: static analysis, functional testing, security testing, and load testing. WebKing's wizards and automated technologies help you verify application functionality and reliability without writing a single script, plus its flexibility allows you to automatically verify even the most specialized requirements. You can start testing instantly, then easily extend and customize tests if needed.
Language: English, Japanese
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Step-by-step evaluations, Page transformation
Automatic checking: Single pages
Repair options: Code modification
Formats: CSS, HTML, XHTML
Operating system: Windows, Linux, Solaris
IDE: Eclipse, WebSphere Studio
Reports: HTML, XML, CSV
License: Commercial
WebXACT (version 4.0): Watchfire, 14 March 2005
Description: WebXACT is a free online service that enables users to test single pages of web content for accessibility, quality and privacy issues. Can be integrated into the browser via favelet or similar technology.
Language: English
Guidelines: WCAG 1.0, Section 508
Automatic checking: Single pages
Formats: HTML, XHTML
Online service: Online checker
Reports: HTML
License: Free Software
WebXM (version 4.0): Watchfire, 14 March 2005
Description: WebXM™ is the industry's only automated Online Risk Management solution that audits accessibility, quality, privacy, security, brand and compliance issues across corporate web properties. WebXM drives significant cost out of the online operation by automating manual processes and identifying and prioritizing issues for immediate remediation. The Accessibility module of WebXM scans your online web properties for over 170 accessibility checks and generates user-friendly dashboards and reports for website stakeholders. Non-compliance with the W3C's Web Content Accessibility Guidelines (WCAG), or government standards (such as the U.S. Government's Section 508) discriminates against individuals with disabilities and can negatively impact your corporate brand.
Language: English, Japanese
Guidelines: WCAG 1.0, Section 508
Assistance: Generating Reports, Page transformation
Automatic checking: Single pages, Page groups, Restricted pages
Formats: HTML, XHTML
Online service: Server installation
Operating system: Windows
Browser: Internet Explorer
Reports: HTML, XML, CSV
License: Commercial, Enterprise

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