Color Contrast Checker
Check WCAG AA/AAA contrast between text and background colors. Everything runs locally in your browser, nothing is uploaded.
About this tool
Color Contrast Checker: free, fast, browser-only. Nothing you type leaves this page.
Why free, and what happens next
Tools like this one are how this desk stays findable: useful first, commercial when you are ready. When a tool surfaces a problem you would rather have fixed than diagnosed, start a project or run the cost calculator first. Everything runs client-side: your data never leaves this page.
More accessibility tools
Image Alt Text Checker
Paste HTML, find every image missing alt text, with context.
Form Accessibility Checker
Paste form HTML, audit labels, errors and required semantics.
ARIA Checker
Paste HTML, find ARIA misuse: roles, labels, orphaned attributes.
Accessible Form Generator
Generate accessible form HTML: labels, fieldsets, error wiring.
Keyboard Navigation Checklist
Test your site by keyboard only: the full pass/fail checklist.