HTML Accessibility & Contrast Checker

Paste HTML or choose a local file to get a list of accessibility findings. Check two colors separately; keyboard behavior and rendered layout require an interactive review.

Runs locally in your browser

Parsing and analysis run entirely in your browser. No data is uploaded or sent to an API.

HTML source

This source-level audit cannot inspect computed layout, keyboard behavior, dynamic states, or the real accessibility tree in a running application.

Color contrast check

Foreground

Background

Accessibility summary

Catch practical accessibility issues before deployment

Use the findings as a review checklist, then test the rendered interface with a keyboard, browser accessibility tree, and people who use assistive technology.