Accessibility Tools

Free, instant, no-signup tools to check your site's accessibility. Each tool runs entirely in your browser — no data is sent to any server.

Color Contrast Checker

Test any two colors against WCAG 2.2 contrast requirements. See if your text passes Level AA and AAA for normal and large text.

WCAG 1.4.3 · WCAG 1.4.6 · Contrast ratio

Heading Structure Analyzer

Paste your page HTML and see the heading hierarchy. Catches skipped levels, missing H1s, and structural issues.

WCAG 1.3.1 · Semantic structure · H1–H6

Alt Text Checker

Paste HTML to find images missing alt text, empty alts on informational images, and decorative images that should be hidden.

WCAG 1.1.1 · Non-text content · Screen readers

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