SUMMARY

WAVE is a web accessibility evaluation tool developed by WebAIM.org. It provides visual feedback about the accessibility of your web content by injecting icons and indicators into your page. No automated tool can tell you if your page is accessible, but WAVE facilitates human evaluation and educates about accessibility issues. All analysis is done entirely within the Chrome browser allowing secure valuation of intranet, local, password protected, and other sensitive web pages. To run a WAVE report, simply click on the WAVE icon to the right of your browser address bar, or select "WAVE this page" from the context menu. WAVE errors align with WCAG 2.2 failures. The WAVE interface facilitates human evaluation of many other aspects of accessibility and Web Content Accessibility Guidelines and Section 508 compliance. Version 3.2.7.0 (August 2024) adds compatibility with Manifest v3. Inputs with aria-disabled=true are no longer considered for contrast checking. Version 3.2.6.0 (August 2024) adds support for contrast checking when foreground alpha/opacity is defined. The Contrast sidebar tools are updated to support foreground alpha. Also numerous minor bug fixes and improvements. Version 3.2.5.3 (February 2024) fixes numerous minor bugs and adds testing refinements. Some hidden inputs are no longer incorrectly flagged as not labeled. Version 3.2.4.4 (October 2023) fixes a few minor bugs with testing hidden content and with the sidebar contrast tools. Version 3.2.3.9 (June 2023) removes the warning message on UserWay pages due to them removing code that changes page content when the WAVE extension is activated. Version 3.2.3.8 (June 2023) includes numerous accessibility test enhancements, several minor bug fixes, and simplification of the contrast checking tools. Users are informed that WAVE results may be manipulated on pages that utilize UserWay or accessiBe overlays. Version 3.2.3 (March 2023) includes several minor bug fixes. A previous update to test for contrast errors in hidden elements has been reverted. While this was useful for finding contrast errors in drop-down menus, tab panels, dialog windows, etc., identification of errors in hidden elements caused user confusion and, in some rare cases, false positives. Version 3.2 (December 2022) includes over 100 bug fixes and performance enhancements. The extension no longer utilizes jQuery, resulting in faster testing and better compatibility with a variety of pages. A new Navigation Order panel is available that shows the navigation order, element roles, and accessible names (what is read by a screen reader) for all navigable elements. Version 3.1.6 (October 2021) includes numerous bug fixes and test rule enhancements for better testing contrast (filters, background images, and other complex color definitions are better handled), document language (IANA-defined language values are now tested), empty links and buttons (better ARIA support for accessible name computations), broken ARIA references, etc., etc. Performance and accessibility has been improved. Version 3.1.3 (November 2020) includes performance enhancements and fixes several minor bugs, including fixes for multiple alerts for some pseudo-lists and disabled controls being incorrectly flagged for contrast failures. Version 3.1.2 (October 2020) fixes several minor bugs, including with the Structure tab sometimes incorrectly showing no structure, and improves performance and accessibility testing reliability. Version 3.1 (September 2020) includes new accessibility tests (region, figure, possible list, select element missing label, and image with title), improved contrast checking, expanded lang attribute value checking, and numerous other bug fixes and improvements. Version 3.0.9 (July 2020) includes numerous bug fixes, improved accessibility, and improved color contrast checking including fewer false positives and expanded contrast checking for form inputs.

The latest version of WAVE Evaluation Tool is available on the Chrome web and is currently being used by 500,000 active users. The initial version was launched on 2020-04-20.

HOW TO INSTALL WAVE Evaluation Tool FROM A CRX FILE

1. Download WAVE Evaluation Tool CRX file
2. NOTE: Sometimes the browser may block downloading / installing CRX file from outside the Chrome Web Store. If so, you may need to download the ZIP file instead
3. In the URL bar, go to chrome://extensions
4. Enable Developer mode

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