Accessibility
Find the tool you need, then open it to get started.
All accessibility
Accessible palette
Foreground/background contrast matrix.
Alt text generator
Local BLIP image descriptions.
Color blindness simulator
Named simulation model, preview modes and clear limits of simulation.
HTML accessibility checker
Paste HTML with automated rule results.
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Use automated checks to support human review
Accessibility utilities can calculate contrast, inspect markup and help draft descriptions. They answer specific questions, but a usable experience also depends on navigation, context and the way content is presented to people using different technologies.
How to choose your next step
Review the result with its surrounding content. Where relevant, test keyboard navigation and a screen reader rather than relying only on a numerical score.
Common questions about accessibility
Does every image need a long description?
No. The useful description depends on the image’s purpose and nearby text. A decorative image and a chart conveying important information need different treatment.
Can an automated pass certify the whole experience?
No. Automated checks cover only part of the problem. Use them to find issues, then review interactions and content with the intended users in mind.