Accessibility Checker
Scan HTML for WCAG accessibility issues with severity and fixes.
Frequently asked questions
Does my HTML get uploaded?
No. The audit runs entirely in your browser using the built-in HTML parser — your markup never leaves your device.
Which standard does it check against?
It applies common WCAG 2.1 Level A and AA success criteria as automated heuristics, and cites the relevant criterion for each issue.
Can automated checks catch everything?
No tool can. Automated checks catch roughly 30–50% of issues; always pair them with manual keyboard and screen-reader testing.
Can it check colour contrast?
It flags risky patterns (like disabled zoom), but true contrast ratios need rendered colours, so pair it with a dedicated contrast checker.