Category
Accessibility Tools
Accessibility tools read browser-visible preferences and offer focused previews for motion, color scheme, forced colors, contrast math, keyboard focus, and speech synthesis.
Start with Accessibility Preferences for a hub overview (including prefer-contrast explanation), then open a dedicated tool for a live preview or WCAG hex contrast check. These pages are informational, not medical reports or full site audits.
Featured
Featured accessibility tools
Start here for the most common checks in this category.
Accessibility Tools
Color Contrast Checker
Calculate WCAG contrast ratios between foreground and background colors.
Accessibility Tools
Accessibility Preferences
Overview of prefers-* and related accessibility media features.
Accessibility Tools
Keyboard Focus Test
Tab through sample controls and verify visible focus indicators.
Accessibility Tools
Reduced Motion Check
Detect prefers-reduced-motion and preview motion vs reduced experiences.
Catalog
All accessibility tools
8 published tools in this category.
Accessibility Tools
Color Contrast Checker
Calculate WCAG contrast ratios between foreground and background colors.
Accessibility Tools
Reduced Motion Check
Detect prefers-reduced-motion and preview motion vs reduced experiences.
Accessibility Tools
Color Scheme Preference
See whether the OS/browser prefers light or dark color schemes.
Accessibility Tools
Forced Colors Test
Check forced-colors / Windows High Contrast style media queries.
Accessibility Tools
Text Spacing Test
Preview WCAG text-spacing adjustments on sample copy.
Accessibility Tools
Keyboard Focus Test
Tab through sample controls and verify visible focus indicators.
Accessibility Tools
Speech Synthesis Test
List Web Speech voices and speak sample text for TTS checks.
Accessibility Tools
Accessibility Preferences
Overview of prefers-* and related accessibility media features.
FAQ
Accessibility Tools FAQ
Common questions about this category of diagnostics.
Are these medical or clinical diagnoses?
Do these tools replace WAVE, axe, or a professional audit?
What do prefers-* values mean here?
Why does Speech Synthesis need a click?
Guides
Buying & troubleshooting guides
Editorial docs and policies that pair with these tools.
- Color Blindness Test
Educational color-vision simulation under Display, not a clinical diagnosis.
- How we test
How DeviceHub validates browser and accessibility tools.
Explore
Related categories
Keep testing with adjacent DeviceHub hubs.
- Display Tests
Dead pixels, color, contrast, refresh, and monitor uniformity checks.
- Browser Diagnostics
Browser identity, features, storage, clipboard, and web platform APIs.
- Device Calculators
PPI, DPI, screen size, viewing distance, and resolution calculators.