WCAG conformance checks
Check webpages against WCAG 2.0, 2.1, and 2.2 success criteria at A, AA, and AAA levels.
Accessibility Checker by WebYes
Freemium
Accessibility Checker by WebYes is a free Chrome extension that audits webpages for WCAG issues, contrast problems, structural concerns, and selected best-practice issues. It helps developers, designers, QA teams, auditors, website owners, and content editors run quick accessibility checks in the browser.
What is Accessibility Checker by WebYes?
Accessibility Checker by WebYes is a Chrome extension for running accessibility checks directly on webpages. It performs page-level checks against WCAG 2.0, 2.1, and 2.2 criteria across A, AA, and AAA conformance levels, with results intended to support preparation for ADA, EAA, and Section 508 requirements. The extension is designed for quick reviews without complex setup, DevTools, sign-in, or an account.
The extension combines issue detection with visual inspection tools. It can highlight affected elements, show heading structure, focus order, and ARIA landmarks, review image alt text, and test color contrast for text and interface elements. It also includes simulations for dyslexia, low vision, and color blindness, allowing teams to inspect pages from different user perspectives.
What can Accessibility Checker by WebYes do?
Color contrast testing
Check text and UI element contrast, view WCAG AA and AAA pass/fail results, sample colors with an eyedropper, test alternatives, and copy HEX values.
Page structure visualization
Visualize ARIA landmarks, heading hierarchy, and keyboard tab order to review page organization and navigation.
Element and image review
Highlight issues on the page, inspect affected elements without opening DevTools, and review images together with their alt text.
Disability simulations and best-practice checks
Simulate dyslexia, low vision, and color blindness, while also identifying usability and inclusivity improvements beyond strict WCAG errors.
Exportable reports and layout testing
Download audit reports containing WCAG criteria, severity levels, affected code snippets, and recommendations, and test desktop and mobile page layouts.
Use Cases
“Development reviews”
Developers can run quick checks while building or revising a page, identify high-impact issues in the browser, and inspect the relevant page elements before a formal audit.
“Design validation”
Designers can test contrast alternatives, examine page structure, and use disability simulations to evaluate how visual decisions may affect different users.
“QA workflows”
QA engineers can add page-level accessibility checks to testing activities and use exported findings to communicate issues and recommendations.
“Audit preparation”
Accessibility auditors can perform rapid early-stage reviews, map findings to WCAG criteria, and share reports with developers, clients, or stakeholders.
“Content and site maintenance”
Website owners and content editors can review image alt text, structural signals, and basic accessibility issues without writing code or configuring a separate testing environment.
Frequently Asked Questions
How do I start a check?
Install the extension from the Chrome Web Store, pin it to the Chrome toolbar, open the webpage to test, select the extension icon, and run the accessibility check.
Which standards does it check?
The extension lists checks mapped to WCAG 2.0, 2.1, and 2.2 success criteria at A, AA, and AAA conformance levels. It also describes the results as support for preparation related to ADA, EAA, and Section 508 requirements.
Does it require an account or send webpage data to an external service?
The publisher states that the extension runs locally in the browser, makes no external requests, does not collect or track user data, and does not require sign-in or an account.
Can I share the results?
Yes. The extension provides downloadable reports with audit issues, WCAG criteria, severity levels, affected code snippets, and best-practice recommendations.
Does a clean result prove legal compliance?
No. The publisher explicitly says that passing all checks does not guarantee full WCAG conformance or legal compliance under the ADA or EAA. Professional audits may still be needed.
Quick Facts
- Category
- Accessibility
- Platform
- Google Chrome extension
- Primary users
- Developers, designers, QA teams, accessibility auditors, website owners, and content editors
- Testing scope
- WCAG 2.0, 2.1, and 2.2; A, AA, and AAA levels
- Workflow
- Run checks on an open webpage from the Chrome toolbar
- Privacy model
- Local browser analysis; publisher states no browsing-data collection or tracking
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