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A11y Scan is in Beta

Beta

The extension is functional and actively used for real accessibility audits. Beta means we are still refining — not that it is broken or unreliable.

What Works Today

Automated Scanning

Stable

axe-core powered WCAG scanning at Level A, AA, or AAA across versions 2.0, 2.1, and 2.2.

Manual Review

Stable

Guided checklist of criteria that cannot be automated, filtered by page relevance.

ARIA Pattern Validation

Stable

Validates tabs, accordions, menus, dialogs, and 12+ ARIA widget patterns.

Visual Overlays

Stable

Violation highlights, tab order badges, and focus gap outlines on the page.

Multi-Viewport Scanning

Stable

Scan at mobile, tablet, and desktop widths to catch responsive issues.

Site Crawl

Stable

Depth-first crawl with backtracking, pause/resume, nofollow support.

Report Export

Stable

JSON (enriched for AI agents), HTML (self-contained), and PDF export.

Color Blindness Simulation

Stable

9 types of color vision deficiency simulation on any page.

Test Config System

Stable

JSON config files for custom scan settings. Website config builder wizard.

Observer Mode

Improving

Passive background scanning of every page you visit. Local-only history with filters and export.

Auth-Gated URL Tagging

Improving

Mark which URLs in a config require login so the crawler handles them explicitly and warns on unexpected redirects.

WCAG Reference

Stable

78 criteria pages with explanations, code examples, and fix guidance.

What We Are Improving

  1. Focus gap detection accuracy — reducing false positives on decorative elements and elements inside focusable parents.
  2. Crawl link discovery — switching from DOM-order to tab-order link discovery so the crawl follows the same path a keyboard user would.
  3. Page interaction rules — test configurations for pausing crawls at specific URLs so users can manually interact with content (expand accordions, open tabs, dismiss modals) before scanning resumes.
  4. Enriched export quality — improving framework detection, file path guesses, and DOM context accuracy.
  5. Overlay visibility — ensuring highlights and badges are visible on any background color and at any zoom level.

What Is Coming

  1. Chrome Web Store publishing — currently install from GitHub. Web Store listing is pending.
  2. Feedback and bug reporting — a way to submit issues, suggestions, and feature requests via the Support page and GitHub Issues.
  3. Auth-protected demo pages — demo pages behind login for testing the authentication crawl feature.
  4. Scan comparison — pick any two Observer Mode scans and diff resolved, new, and unchanged violations.
  5. Site-wide search — search across all pages on the website, not just the WCAG sidebar.

Found a bug or have a suggestion?

Visit the Support page to report bugs or request features. We recommend checking GitHub Issues first to see if someone already reported it, then creating a new issue if not. If you do not have a GitHub account, use the contact form on the support page and we will create the issue on your behalf.

Go to Support

Get Started

Install the ExtensionTry It on Demo PagesBrowse WCAG Reference