A11yKit
27 free online accessibility tools for WCAG 2.2 and EAA compliance. Contrast checker, WCAG checklist, and statement generator. 100% client-side.
About
A11yKit is a suite of 27 free web accessibility tools that run entirely in your browser to help you check, fix, and generate accessible web content for WCAG 2.2 and EAA compliance. It includes a contrast checker, WCAG 2.2 checklist, accessibility statement generator, ARIA generator, heading analyzer, form checker, color blindness simulator, HTML scanner, link checker, focus order checker, alt text checker, URL scanner, PDF checker, AI alt text generator, accessibility monitor, readability analyzer, touch target checker, and more. Everything is 100% client-side — no server uploads, no signup, instant results.
What is A11yKit
A11yKit is a collection of 27 free web accessibility tools that run locally in your browser, helping developers, designers, and content creators test and improve WCAG 2.2 and EAA compliance without sending data to a server. No signup is required, and all processing happens instantly on your device.
Key features
- 27 specialized tools: contrast checker, WCAG checklist, statement generator, ARIA generator, heading analyzer, form checker, color blindness simulator, HTML scanner, link checker, focus order checker, alt text checker, URL scanner, PDF checker, AI alt text generator, accessibility monitor, readability analyzer, touch target checker, skip links checker, landmarks checker, focus styles checker, palette generator, animation checker, contrast batch checker, live color blind simulator, form error checker, alt quality scorer, and AI ARIA generator.
- Fully client-side: everything runs in your browser using JavaScript; your inputs never leave your device (except for AI alt text, which calls OpenAI directly with your own API key).
- WCAG 2.2 alignment: tools check against the latest success criteria, including the 86 criteria in the interactive checklist.
- No account, no cost: every tool is free and requires no registration; you can start immediately.
- Live preview and export: many tools offer real-time feedback, copy-paste ready code, or exportable audit results.
How to use it
- Open a11ykit.site in any modern web browser.
- Choose a tool from the homepage or navigation menu — e.g., Contrast Checker, HTML Scanner, or Statement Generator.
- For checkers: paste your HTML, upload a PDF, enter a URL, or interact with the live interface.
- Review instant results: contrast ratios, violation lists, accessibility scores, or generated markup.
- Copy the outputs: fixed code, ready-to-publish statements, or audit reports.
- For AI Alt Text Generator: enter your OpenAI API key once (stored only in your browser) and upload an image to get descriptive alt text.
- For Accessibility Monitor: scan a URL and save results locally in your browser to track progress over time.
Who it is for
A11yKit is ideal for web developers, UI/UX designers, content creators, accessibility auditors, and small business owners who need quick, private accessibility checks. It suits anyone preparing for EAA enforcement (active since June 2025) or aiming to meet ADA and Section 508 requirements without installing software or sharing data.
What to know before you use it
- Automated checks do not guarantee full compliance; manual testing with assistive technologies is still necessary.
- The URL scanner works with public pages and may be limited by JavaScript-rendered content, authentication, or site blocking.
- AI-generated alt text depends on your OpenAI API key and model quality; always review outputs for accuracy.
- PDF checking uses pdf.js and may not detect all tagging issues compared to dedicated PDF remediation tools.
- Some tools require basic HTML knowledge to interpret results or fix issues.
- The statement generator produces a compliant template, but you must fill in accurate details about your own site and organization.
- The tools are client-side, so no data is stored on servers, but that also means results are not shared across devices unless you export them.
- Remember that these are free web accessibility tools meant to assist, not replace, professional audits.
FAQ
Is A11yKit really free?
Yes, all 27 tools on A11yKit are completely free with no signup or hidden fees. They run client-side and do not require a subscription.
What WCAG standards do the tools cover?
The tools check against WCAG 2.2 success criteria (including all 86 in the checklist) and are aligned with EAA requirements. Some tools also reference WCAG 2.1 levels A and AA for contrast.
Does A11yKit store my data?
No, your inputs stay in your browser; there are no server uploads. The only exception is the AI Alt Text Generator, which uses your own OpenAI API key and sends images directly to OpenAI without involving A11yKit's servers.
Can I use A11yKit for commercial projects?
Yes, the tools are free to use for any purpose, including commercial work. No attribution is required.
Do I need to know how to code to use these tools?
Many tools are designed for developers and require pasting HTML or understanding markup, but some like the Contrast Checker and Color Blind Simulator are user-friendly for non-technical users.