Accessibility Tools
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Useful tools to check and improve the accessibility of your website. All tools are free to use.
Alt text checker — check the alternative texts on your website
Free alt text checker. Enter a URL and review all images to see if their alt texts are correct. Includes SVGs and icons.
Heading structure checker — check the heading hierarchy of your website
Free heading structure checker. Enter a URL and instantly see whether your headings (H1–H6) are logically structured according to the WCAG guidelines.
Colour contrast checker — does your colour combination meet WCAG?
Free colour contrast checker. Check if your colour combination meets WCAG 2.2 level AA and AAA. Enter two colours and see the result instantly.
ARIA Roles & Attributes Reference
Search and explore WAI-ARIA roles and attributes. View descriptions, supported attributes, HTML equivalents and practical code examples.
Error messages reference
Find good error messages for every form field type. With examples of what to write and what to avoid, according to WCAG.
Link checker Beta
Enter a URL and review all links on the page with their accessible name, URL and any issues found.
PDF accessibility checker Beta
Upload a PDF and automatically check for common accessibility issues. Checks tags, title, language, headings, images, lists and tables.
Table checker Beta
Enter a URL and check all tables on the page for digital accessibility. Checks structure, headers, scope attributes and more.
Alt text decision tree
Not sure what alt text to write? This interactive decision tree guides you step by step to the right alt text.
Need more?
We also build custom tools for our clients. Need a specific tool or automation? Discuss the options with Julia Tol.
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Proper Access Toolsuite
We built an application with 9 tools that allow web editors to independently check their content for accessibility. No technical knowledge needed, no HTML required.
The tools don't just flag issues — they also explain why something is a problem and how to fix it. So you learn while you check.
The toolsuite includes checkers for heading structure, alt texts, links, tables, semantics, error messages, iframes, language and page titles.
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Clients only
This tool is exclusively available to Proper Access clients. Already have an access code? Enter it below.