For developers, designers, and QA teams building accessible web applications
A11y Lens scans web pages for WCAG violations using axe-core, displays results in Chrome's Side Panel, and highlights issues directly on the page with severity-coded outlines.
5 free scans per month • Unlimited scans with Pro
Scan pages against WCAG 2.1 AA or WCAG 2.2 AA conformance levels using axe-core accessibility testing engine.
Results display in Chrome's native Side Panel interface, keeping your workflow uninterrupted while you inspect violations.
All violations are outlined on the page with color-coded borders. Click any violation to scroll to it and see it pulse.
Violations organized by impact level: Critical, Serious, Moderate, Minor
Each violation card expands to show affected elements, WCAG criteria, impact level, and remediation guidance.
5 free scans per month. Upgrade to Pro ($12/month) for unlimited scans. Email hello@a11ylens.com to purchase.
axe-core
Chrome Extension (Manifest V3)
Chrome Side Panel
Preact + TypeScript
WCAG 2.1/2.2 AA
You get 5 free scans per month. The counter resets on the 1st of each month. Upgrade to Pro for unlimited scans and support ongoing development.
Email hello@a11ylens.com with "A11y Lens Pro License" in the subject. We'll send you a license key and payment instructions. Enter the key in Settings to activate Pro. Your license works on all your devices.
No automated tool catches everything. A11y Lens finds common WCAG violations, but manual testing is still needed for complete accessibility coverage—especially for keyboard navigation, screen reader compatibility, and contextual issues.
No. A11y Lens runs entirely in your browser. Scans happen locally, and no data is sent to external servers. Your privacy is protected.