All 141 tools / Accessibility checks
Scan one page's HTML for accessibility problems and see the WCAG criterion behind each one.
Page accessibilityFreeFor developers and designers
20/day
free runs a day, no sign-in.
Before: what you give it
The example input, as typed in. You give it a page address.
https://allthepossibles.com
After: what comes back
The first lines of a real run on that input. Nothing here is edited by hand.
"All the Possibles: tools that check themselves before they ship": 13 headings, 0 images, 21 links, 3 buttons, 1 form controls 0 high, 0 medium, 0 low No static findings. Static HTML only. It does not render the page, so it cannot test colour contrast (use the contrast tool), focus order, keyboard traps, ARIA behaviour in script-built interfaces, captions, or reading order. Passing this audit does not mean a page is accessible; automated tools find roughly a third of WCAG failures.
What you get
Issues ranked high, medium and low, each with its WCAG criterion and an example element
What it cannot do
Reads static HTML only: it cannot test contrast, focus order, keyboard traps or script-built interfaces.
Who it is for
- Developers
- Designers
Free and Pro
| Free | 20 runs a day per IP address. |
|---|---|
| Pro | No daily limit, 300 requests a minute. |
Use it from your assistant
The tool is called audit_page_accessibility. Connect the server once, then ask for it by name or just describe the job. Install steps for each app.
claude mcp add --transport http designers https://designers.allthepossibles.com/mcpcurl -X POST https://designers.allthepossibles.com/api/a11y-page -H 'content-type: application/json' -d '{"url":"https://allthepossibles.com"}'Try it here
The form starts with the same example input, so you can run it first and then swap in your own.
More in accessibility checks
- Touch targets
Check button and control sizes against WCAG 2.5.8, iOS and web 44, and Android 48 targets.
- Screen reader script
Read a page as a linear script of what a screen reader would announce, with problems flagged inline.
- Reflow and resize check
Find what breaks at 400 percent zoom or 320px wide: blocked zoom, fixed widths and clipped boxes.
- Form audit
Audit a form's markup for labels, autocomplete, input types and error wiring, and review its error messages.
- Alt text quality
Catch missing, file-name and filler alt text on a page, and weak og:image alt, before it ships
- Touch target estimate from CSS
Estimate which buttons and links fall under 24px or 44px tap size from your CSS and markup