Accessibility Checker
Analyze HTML for common accessibility issues and WCAG compliance.
Runs entirely in your browser - your files are never uploaded
What is Accessibility Checker?
Accessibility Checker is a free, web-based utility designed for instant, local accessibility tools tasks. It allows users to compute, format, convert, or edit data directly in their browser without installing software or registering an account.
- 100% Free & Unlimited Usage
- 0% File Uploads (100% Client-Side Privacy)
- Instant Real-Time Calculations
- Mobile, Tablet & Desktop Compatible
How to use Accessibility Checker
Select or Enter Input
Provide your source file or type your values into Accessibility Checker.
Configure Settings
Adjust parameters, formatting options, or units in real-time.
Get Instant Output
Download the final processed file or copy the generated output.
About the Accessibility Checker
The Accessibility Checker performs a instant client-side audit on your HTML markup to detect common WCAG 2.1 accessibility violations.
Scans for missing image alt tags, unlabelled form inputs, duplicate element IDs, invalid heading nesting, empty links, and missing ARIA properties.
Frequently asked questions
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