My Tool Studio
WCAG & Accessibility·2 min read

Instant Accessibility Checker: how it works and when to reach for it

Every developer ends up writing the same five helper scripts at some point. We saved you the trouble. Paste a URL or raw HTML and get instant WCAG 2.1 results: every failure with severity, success criterion, the offending element, and ready-to-paste fix code. Same engine as our full-site scanner.

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What Instant Accessibility Checker actually does

The honest one-paragraph version.

Paste a URL or raw HTML and get instant WCAG 2.1 results: every failure with severity, success criterion, the offending element, and ready-to-paste fix code. Same engine as our full-site scanner.

This one belongs to our URL first family. You paste a link and the tool reads the page for you, so most of the form ends up filled before you touch a field.

Who reaches for this

If any of these sound like you, the tool earns its bookmark.

Built mainly for people building on the web. If you have ever needed check one page or pasted html against 70 wcag checks instantly, you are the audience.

Use it for client work without attribution. There is no commercial restriction.

How to use it

Three steps. The tool does the rest.

The fastest path is to paste a URL into the input and let the tool do the work.

  • Paste the page URL into the input.
  • Review the auto-filled fields. Adjust anything that needs tightening.
  • Copy the output, or download it if the tool offers a file export.

Why use Instant Accessibility Checker instead of another option

Three reasons that hold up in practice.

Most free tools online are either ad-stuffed or upload-first. This one is neither. We do not run ads inside the tool UI and most processing happens locally in your browser.

WCAG tools at mytoolstudio share three rules. They run in the browser whenever possible. They never lock features behind sign up. And they keep your data on your device unless server work is the only way.

Tips that save time

Small habits that compound across a workweek.

Pair it with your editor's keyboard shortcut for opening URLs and you can flow through it without breaking focus.

  • If you collaborate over chat, paste the input here first to normalize formatting before sharing.
  • Pair it with your editor's keyboard shortcut for opening URLs and you can flow through it without breaking focus.
  • Keep this open in a pinned tab. Most developers run it five to ten times a day.

Open Instant Accessibility Checker

Stop reading. Start using.

That is everything worth saying. Open the tool and try it on something real. You will know within a minute whether it belongs in your kit.

Related research

If you found this useful, the other WCAG guides are written in the same voice. We keep them short, practical, and rooted in real work.

About the makers

mytoolstudio is designed and built by the team at GAP3, a small studio that ships product, brand, and growth work for early stage companies. We built this site as a free public good. Read more about us at gap3.co.

Try it now

Open Instant Accessibility Checker

The tool is one click away. No sign up, no upload, no payment.

Open Instant Accessibility Checker