Creating an accessible website requires the use of suitable tools to test, correct and maintain a high level of accessibility.
Here is a selection of useful tools categorized:
Automatic testing tools
- Lighthouse (Google Chrome): Analyzes accessibility, SEO, and performance.
- axe DevTools (Deque): Chrome and Firefox extension to test accessibility directly in the browser's DevTools.
- WAVE (WebAIM): Checks for contrast, ARIA errors, and HTML structure.
- Pa11y: Open-source automated validation tool.
- io: API to automatically test accessibility in development processes.
Contrast and color checking tools
- Color Contrast Analyzer (TPG): Allows you to check the contrasts between text and background.
- Accessible Colors: Helps you choose colors that meet WCAG standards.
- Sim Color Blindness (only available on macOS and iOS): Simulates the different types of color blindness to check color accessibility.
Tools for screen readers and keyboard navigation
- NVDA (Windows): Open-source screen reader used by many testers.
- JAWS (Windows): Advanced screen reader, often used in business.
- VoiceOver (Mac/iOS): A built-in screen reader in Apple products.
- TalkBack (Android): Screen reader built into Android products.
Tools for checking forms and navigation
- tota11y (Khan Academy): Displays annotations to identify accessibility issues.
- Focus Indicator: Highlights the currently selected items on the keyboard.
- HTML_CodeSniffer: Checks for errors in forms and the use of ARIA attributes.
Developer tools (CI/CD integration)
- axe-core: JavaScript library for integrating automated accessibility tests.
- Pa11y CI: A command-line tool for testing reachability in a CI/CD pipeline.
- Cypress + axe-core: Allows you to run accessibility tests in end-to-end tests.
To go further
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