Allows people to see websites the way people with various visual impairments do. Currently it covers varying degrees of colour blindness, diabetic retinopathy, cataracts, macular degeneration and glaucoma.

Tools, links and resources on Website accessibility.

Toolbar aids manual examination of pages for accessibility features. 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; provide links to references and additional resources.

Enables you to test how your page appears at low screen resolutions - e.g. webtv, 640x480, 800x600.

Validator that checks pages for WAI and 508 accessibility standards.

Test your website foreground/background colors for their contrast and clarity to color blind visitors.

View your actual web pages through the eyes of visitors with three different types of color blindness.

Accessibility agent offering validation for WAI standards and Section 508 compliance. Includes information and news from the Internet Society Disability and Special Needs Chapter.

A free on-line accessibility and browser compatibility checker. Hermish will test your web pages for accessibility issues and provide a detailed report.

Tests to Section 508 and WCAG standards.

Test foreground/background color contrast.

Delorie online viewer enables you to view your site in a text browser.

OCAWA, Operational Control and Analysis for Web Accessibility. OCAWA tests the accessibility of your web site using international accessibility standards.

View your website as someone with color blindness would. Appears to work only in IE. Bookmarklet available.

Free next-generation tool enables asessment of Website's meeting legislation and needs of the disabled.

Test your website with the W3C, WDG, ATRC, WebAIM, WebXact, Bobby, Cynthia Says, HiSoftware, Site Valet, Colorblindness filter, and Google Viewer, simply by typing your site address once.

Allows the user to see the world as color blind people see it. Checks by images and urls.

W3C CSS Validation service enables you to check your CSS code for validity, and warns you if you are using browser specific code.

A free service from W3C that checks HTML and XHTML code against the W3C Web Accessibility Guidelines.

Online tool checks page accessibility, displays page with tags to show good and bad points.

Check your Web site for its Mark-Up, Accessibility and more. A collection of the most popular tools (W3C, CSE, and Cynthia validators, and also a Lynx simulator). All the best resources on one page.

This tool will examine your site, and based on the accesibility level you choose, will provide you with a source code listing with marks next to each element which requires attention.