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Accessibility Tools

This page is divided into five sections:

  1. Evaluation Tools
  2. Automated Validation Tools
  3. Automated Repair Tools
  4. Alternative Browsing
  5. Assistive Technology

1. Evaluation Tools

Checklist of Checkpoints for Web Content Accessibility Guidelines 1.0 provides a list of all checkpoints from the Web Content Accessibility Guidelines 1.0, organized by concept, as a checklist for Web content developers.

2. Automated Validation Tools

W3C HTML Validation Service checks HTML documents (web pages) for conformance to W3C (World Wide Web Consortium) HTML and XHTML Recommendations and other HTML standards. You need to have a properly coded DOCTYPE in your web page for this tool to be effective.

Bookmarklets Check pages in your browser validate your code, grayscale the page, check images for alt text, resize your screen and more!

Opera for Windows - validate your page source in your browser. In the latest version of Opera for Windows, right-click on the page, choose Frame | Validate Source. It will upload the page to the W3C HTML Validation Service and return the results to you in your browser window.

W3C CSS Validation Service validates your Style Sheet against the most current CSS specification. You can validate your style sheet by entering the URL into their web page, or, you can download the CSS Validator Version 2.0 and run it on your computer.

Web Static Analyzer Tool (WebSAT) (National Institute of Standards and Technology) The Web Static Analyzer Tool (WebSAT) checks the html of a web page against numerous usability guidelines. WebSAT output shows you potential usability problems which should be investigated further. The tool assesses the following factors: Accessibility, Forms Use, Performance, Maintainability, Navigation and Readability. You can check up to 5 pages at a time.

Cynthia is a web content accessibility validation solution, it is designed to identify errors in design related to Section 508 standards and the WCAG guidelines. The Cynthia Says Portal is an online version that will validate one page at a time.

Web Accessibility Checker is an experimental service provided by the Adaptive Technology Resource Center (ATRC) at the University Of Toronto. It is a model system that demonstrates how web pages can be checked for accessibility problems.

Lynx-Me A Lynx Emulator, to get an idea of what your site looks like in Lynx, you can use Gerald Oskoboiny's Lynx Me: submit an URL and see what it looks like in just a few seconds.

WAVE 3.0 Accessibility Tool WAVE is a free web accessibility evaluation tool provided by WebAIM. It is used to aid humans in the web accessibility evaluation process. Rather than providing a complex technical report, WAVE shows the original web page with embedded icons and indicators that reveal the accessibility information within your page.

Vischeck This image engine will simulate how the page looks to someone with a color deficit.

Check Your Page, Version 3.2 Beta, August 15, 2000. This tool provides guidance for determining how accessible your website is for people with disabilities, based upon the work of the Web Accessibility Initiative (WAI) of the World Wide Web Consortium (W3C). This tool runs a Bobby: Text Only Version and a Bobby: Graphical Version, Lynx-Me, the WAVE, Vischeck, the CSS Validator and the HTML Validator. Currently, only publicly available web pages are available to the analysis tools.

Check Your Site This page contains links to many of the tools listed above - you can quickly check the pages of your site for valid markup, accessibility, usability, browser compatibility, spell checking, etc.

Web Design Group HTML Validator - an HTML Syntax Checker. This online tool can be used to validate one page or your entire site.

Web Accessibility Tools Consortium [WAT-C] provides a collection of free tools to assist both developers and designers in the development and testing of accessible web content. The consortium is a collaboration of some of the world's leading accessibility practitioners, founded by Accessible Information Solutions (Australia), Infoaxia (Japan), The Paciello Group (USA), Wrong HTML (Japan), and Juicy Studio (UK).

The Web Developer Extension for Firefox adds a menu and a toolbar to the browser with various web developer tools.

Internet Explorer Developer Toolbar provides a variety of tools for quickly creating, understanding, and troubleshooting Web pages.

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3. Automated Repair Tools

Clean up your Web pages with HTML TIDY, a free utility that fixes HTML coding errors automatically and "tidies" up sloppy editing into nicely laid out markup. It also works on the hard to read markup generated by specialized HTML editors and conversion tools, and can help you identify where you need to pay further attention on making your pages more accessible to people with disabilities.

4. Alternative Browsing

Firefox delivers a better browsing experience for everyone - including those who are visually impaired. Firefox includes support for DHTML accessibility. Web developers can create pages that reduce the amount of tabbing required to navigate a document to minimize keystrokes for those with mobility disabilities. Firefox also includes support for Microsoft Active Accessibility, Microsoft's accessibility API standard for Windows. This support allows Firefox to work with screen readers such as GW Micro's Window-Eyes and Freedom Scientific's JAWS. Firefox 2 (Windows version) meets US federal government requirements that software be easily accessible to users with physical impairments.

Safari for Windows will give you a good approximation of how your site will work on a Mac.

Opera sticks to the HTML standard; using Opera as a test browser, you know that your pages can be viewed with any browser. Opera is ideal for users with disabilities; it makes it possible to navigate web pages entirely with the keyboard.

Lynx for DOS 386+ and Win32Lynx is possibly the most widely used text mode browser on the Internet. It runs on a wide variety of platforms, including Unix, VMS, Macintosh and Windows. Lynx is a full-featured browser, there is almost no content on the web that Lynx cannot retrieve and display, either by itself or by calling on other software designed for the purpose. Follow these instructions for installing the Lynx browser.

Netscape Browser Archive - Here you will find one of the largest consolidated archives on the web for downloading Netscape browser software.

5. Assistive Technology Resources

JAWS for Windows Using JAWS for Windows Screen Reader and MAGic Screen Magnification software developed by Freedom Scientific, blind or visually impaired computer users access a wide variety of information, education and job-related applications.

Window-Eyes, a screen reader for Windows, was designed to add voice access as a stand-alone Windows application which gives you total control over what you hear, when you hear it, and how you hear it. The Window-Eyes demo is fully functional except for one item (which is excluded in the full version of Window-Eyes): the demo will time out after 30 minutes. You will need to reboot for an additional 30 minutes. You may do this an unlimited number of times.

Connect Outloud - Web Access Software for blind and visually impaired individuals. Connect Outloud is an easy to use web access tool for blind or visually impaired computer users. It offers speech and Braille output to the web using Internet Explorer 5.5.


This page was last reviewed on July 21, 2008.

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HTML 4.01 - Follow this link to view the page validation results|Valid CSS - Follow this link to view the page validation results