axe DevTools
The accessibility linter you actually run before launch. Catches ~57% of WCAG defects automatically — enough to ship the real work.
The accessibility linter you actually run before launch. Catches ~57% of WCAG defects automatically.
What it does
Browser DevTools extension (Chrome / Firefox / Edge) that runs the axe-core engine against the current page. Reports WCAG 2.1 AA failures with code-level remediation hints. Free tier covers 90% of what an audit needs.
The caveat
Automated tools find ~30 — 57% of WCAG defects. The rest needs manual screen-reader + keyboard testing. axe is necessary but not sufficient. Don’t ship a site claiming AA conformance based on axe alone.
License
Free for personal / commercial use. Pro tier ($29/user/mo) adds AI-suggested fixes and team collaboration features.