Accessibility Checker Lite

Paste your HTML and scan for common a11y issues: contrast, headings, alt text, links, forms, and landmarks.

Input & actions

Tip: Use “Load sample” for a quick demo. Press Enter to analyze. Esc clears messages.

Summary

Passed: 0 Warnings: 0 Errors: 0

Issues

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How it works

This lightweight checker parses your HTML in-browser and runs best-effort checks: WCAG AA text contrast (vs assumed white if unknown), heading outline, image alt, generic link text, form labeling, and recommended landmarks (<main>, <nav>, <header>, <footer>). No data leaves your device.

FAQs

Is this a full audit?

No—this is an MVP pre-check. For production, pair it with manual testing, keyboard review, and screen reader checks.

What contrast does it use?

WCAG 2.1 AA threshold for normal text (4.5:1). It compares inline colors (or simple attributes) against white when a background can’t be determined.