A11y Scanner - WCAG Accessibility Checker

Tracking since Apr 24, 2026.

Changelog

• May 7, 2026
  description

  Scan any webpage for WCAG accessibility issues in one click. Powered by axe-core, the industry-standard testing engine.
  
  — WHAT IT DOES —
       - Detects 90+ accessibility issues: color contrast, missing alt text, form labels, heading structure, ARIA errors, keyboard navigation problems, and more
       - Supports WCAG 2.0, 2.1, and 2.2 at Level A, AA, or AAA
       - Shows an accessibility score with severity breakdown (critical, serious, moderate, minor)
       - Pinpoints affected HTML elements with fix suggestions
  
  — KEY FEATURES —
       - Works from the toolbar popup or inside DevTools
       - Save reports locally and track progress across pages
       - Export results to CSV for audits and team sharing
       - Optional AI analysis for tailored fix recommendations (supports OpenAI, Anthropic, Google Gemini, xAI — bring your own API key)
  
  — PRIVACY —
       - All scanning runs locally in your browser
       - No data sent to our servers
       - No tracking, no analytics, no ads
       - AI feature is optional and connects directly to your chosen provider
  
  — WHO IT'S FOR —
  Developers, QA testers, designers, accessibility consultants, and anyone building inclusive web experiences.
  
  Free. No sign-up. No limits.
  
  Built by Brillmark | https://www.brillmark.com

  A11y Scanner – Free WCAG Accessibility Checker for DevTools
  
  A free, powerful accessibility testing extension built directly into Chrome DevTools. Instantly scan any webpage for accessibility issues and build more inclusive, compliant websites.
  
  A free alternative to tools like axe DevTools — no account, no paywall, no limits.
  
  ----- WHAT IT DETECTS -----
  - WCAG 2.1 violations
  - WCAG 2.2 violations
  - ARIA misuse and missing attributes
  - Color contrast issues
  - Missing alt text, labels, and roles
  - Keyboard navigation & focus order problems
  - Semantic HTML issues
  
  ----- KEY FEATURES  -----
  - Built into Chrome DevTools — no popup clutter
  - One-click full page scan
  - Detailed issue reports with element highlighting
  - Actionable fix suggestions for every issue
  - Completely free — no sign up required
  - Lightweight and privacy-friendly
  
  ----- WHO IS IT FOR?  -----
  - Front-end developers building accessible UIs
  - QA engineers running accessibility audits
  - UX/UI designers checking contrast and structure
  - Agencies ensuring WCAG compliance for clients
  - Anyone building ADA or Section 508 compliant websites
  
  ----- HOW IT WORKS -----
  Open Chrome DevTools, navigate to the A11y Scanner panel, and click Scan. The extension instantly analyzes the page and lists all accessibility violations with element references and recommended fixes.
  
  Build websites everyone can use.
  
  Install A11y Scanner free today.
  
  Built by Brillmark | https://www.brillmark.com

• May 7, 2026
  short_description

  Free one-click accessibility scanner. Instantly find WCAG issues on any webpage.

  Free DevTools accessibility scanner. Detect WCAG 2.1, 2.2 & ARIA issues instantly on any webpage.

• May 7, 2026
  name

  A11y Scanner

  A11y Scanner - WCAG Accessibility Checker

Permissions & access

Permissions

activeTabscriptingtabsstorage

Host access

<all_urls>

Screenshots