Welcome to the Accessibility Wiki — a free, community-editable knowledge base for digital accessibility. This wiki covers WCAG criteria, practical code fixes, testing techniques, and real-world examples across web, mobile, and document accessibility.
Signed-in users with a verified email can create and edit articles. Add tags on the edit form so articles show up under topics and in the sidebar. Content is contributed by the community — verify against official W3C guidance and real user testing. Links in articles are saved with nofollow for search engines.