ARIA Accessibility Checker
Scan HTML for missing accessible names, invalid ARIA attributes, broken references, and landmark issues. Free, private, client-side accessibility checker.
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What is ARIA Accessibility Checker?
ARIA Accessibility Checker scans pasted HTML for common accessibility issues that affect screen-reader and keyboard users. It identifies missing accessible names, invalid ARIA usage, broken ID references, unsafe focus behavior, and landmark problems without uploading your markup.
Key Benefits
- Catch missing labels before they reach QA or production
- Validate ARIA names, values, roles, and references in one pass
- Find duplicate IDs and focusable content hidden from assistive technology
- Get exact source locations for faster fixes
- Keep sensitive HTML private with a 100% client-side scan
Common Use Cases
- •Reviewing HTML from server-rendered pages and component libraries
- •Checking forms and interactive controls before a release
- •Adding a quick accessibility lint step to QA workflows
- •Auditing legacy markup during an accessibility remediation project
How to Use the ARIA Accessibility Checker
- Paste HTML: Paste the HTML you want to review into the editor, or load the sample markup.
- Review findings: Read each finding to see its severity, exact line and column, message, and source element.
- Fix accessibility issues: Add accessible names, correct ARIA values and roles, repair references, and remove unsafe focus behavior.
- Export the report: Copy the complete report to your clipboard or download it as a plain-text file for a QA ticket.
Key Features
- Detects missing accessible names on buttons, links, and form controls
- Validates ARIA attributes, boolean values, roles, and ID references
- Finds duplicate IDs, hidden focusable elements, and positive tabindex values
- Checks main landmarks, repeated landmark labels, and the document language
- Shows severity, exact line and column, source element, and exportable findings
Frequently Asked Questions
What does this ARIA checker look for?
It checks accessible names for common controls, ARIA attribute names and values, roles, ID references, focus behavior, duplicate IDs, landmarks, and the document language.
Is this a complete WCAG audit?
No. It is a focused client-side lint for common ARIA and landmark problems. Use it alongside keyboard testing, screen-reader testing, color checks, and a full accessibility audit.
Why are missing accessible names important?
Buttons, links, and form controls need a name that assistive technology can announce. Without one, users may not know what a control does or which field they are editing.
Does my HTML leave the browser?
No. The scan runs entirely in your browser. The pasted markup is not uploaded or sent to an external service.