A11yDetector

by googlegroup · a11ysolutions.com · Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 19 Oct 2026

Extension to detect accessibility issues on web pages.

Users

+3 in 30 days

Rating

4.6 / 5

+4.60 in 30 days

Ratings

+5 in 30 days

Store rank

#106K

#89K among extensions

Version

0.3.4

updated 8 Oct 2026

Users

monthly, 6 months

Latest, 19 Oct 2026: 53 usersMove the mouse over the chart for any month

Ratings count

monthly, 6 months

Latest, 19 Oct 2026: 5 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About A11yDetector

Most accessibility extensions only scan your DOM. They find missing alt tags and static contrast issues. That's useful — but it covers roughly 25% of WCAG. A11yDetector is different: it navigates your site with a keyboard, activates controls, and measures focus in dynamic states. It catches the issues that static scanners physically cannot detect. WHAT IT TESTS: ✓ Keyboard navigation (WCAG 2.1.1) ✓ Keyboard traps (WCAG 2.1.2) ✓ Focus order (WCAG 2.4.3) ✓ Focus visible indicators (WCAG 2.4.7) ✓ Color contrast — including :hover and :focus states (WCAG 1.4.3, 1.4.11) ✓ Zoom & reflow at 200% (WCAG 1.4.4, 1.4.10) ✓ Screen reader compatibility (WCAG 4.1.2) WHAT MAKES IT DIFFERENT: - The only extension that performs interaction-based testing - Auditor-grade reports: affected code, suggested fix, reproduction steps, user impact, and grouping of repeated occurrences - Export to Excel / HTML with one click - Configurable viewports (Desktop, Laptop, Tablet, Mobile, Custom) - Scan full pages or specific sections via CSS selector FREE: 5 scans/month. No credit card. PRO: Unlimited scans, exports, and history. From $29/month. Built by A11ySolutions — a team of certified accessibility specialists.