The A11Y Project

64-item WCAG A/AA checklist plus a curated directory of 394 accessibility resources

Tier A · StrongChecklistReferenceDirectorya11yproject.com

(Visit a11yproject.com ↗)(Docs)(Repository)

The A11Y Project is a community-run, open-source accessibility hub with two things an agent can use directly. The first is a 64-item checklist grouped into sixteen sections (Content, Global code, Keyboard, Images, Headings, Lists, Controls, Tables, Forms, Media, Video, Audio, Appearance, Animation, Color contrast, Mobile and touch), where every item names its WCAG success criterion and explains why it matters. The second is a resources directory of 394 entries — books, courses, screen readers, colour tools, browser extensions, vision simulators, testing services, conferences, and meetups — organised by subject. The whole site is Apache-2.0 on GitHub and still actively committed to.

For an agent

Use the checklist page as your accessibility acceptance criteria — 64 items is short enough to actually run against a PR, and each one carries its WCAG criterion so you can cite it in review comments instead of asserting. Fetch https://www.a11yproject.com/checklist/ as HTML and parse the `c-checklist__title` blocks; there is no llms.txt and no JSON export, but the markup is clean and the source Markdown is in the Apache-2.0 repo if you want the raw list. Reach for this over the full WCAG spec when you need something a human will actually complete, and hand off to WebAIM when you need a number rather than a yes/no.

Why it is here. It converts a 100-page standard into 64 checkable sentences, which is the single most useful transformation anyone has done to WCAG. Being Apache-2.0 means you can fork the checklist straight into your own repo.

Install command, framework, licence and component list.

Facts

License: Apache 2.0
Pricing: Free, Open source
Framework: Not applicable
Styling: Not applicable
Distribution: GitHub repository, Article, thread, or post
Platform: Web
Content type: Prose / writing
Agent readiness: Structured documentation, Readable open source
Accessibility: WCAG 2.x AA, Semantic HTML, Keyboard navigable, Contrast checked
Maturity: Actively maintained
GitHub stars: 3,878

Notable for

64 checklist items mapped to WCAG success criteria
394 curated accessibility resources
Apache-2.0, forkable
community-run since 2013
3.9k GitHub stars

Provenance

Verified 2026-08-16. HTTP 200. https://www.a11yproject.com/ (redirect target of https://a11yproject.com), https://www.a11yproject.com/checklist/ (full HTML, 64 items counted), https://www.a11yproject.com/resources/ (394 resource cards counted), https://api.github.com/repos/a11yproject/a11yproject.com via gh; /llms.txt returns 404

Also in Design Systems & Brand Guidelines

a11yproject.comTier A