Accessibility Testing Tools

Audit experiences for color contrast, keyboard navigation, reduced motion, and screen-reader output—all from the browser with no extra installs.

Available accessibility tools

Start with the interactive simulator to preview multiple assistive settings at once.

Accessibility Simulator

Preview color blindness, keyboard navigation, reduced motion, and run ARIA checks on custom markup.

Contrast Batch Checker

Check many color pairs at once and see if they pass WCAG AA/AAA contrast requirements.

Color Blindness Palette Simulator

Simulate Protanopia, Deuteranopia, and Tritanopia to validate palette accessibility.

Focus Trap & Keyboard Tester

Open a test dialog to verify Tab/Shift+Tab trapping and Escape to close behavior.

Focus Order Visualizer

Tab through a demo area and see numbered badges for the keyboard focus order.