Are these tools really free?
Yes. All micro-tools on this page are completely free with no signup, no login, and no usage limits. They run in your browser or use a lightweight server-side proxy for URL-based checks.
Free Accessibility & UX Tools
Quick, browser-based tools to check specific aspects of your site's accessibility and UX. No signup required.
Color Contrast Checker
Check any color pair against WCAG 2.1 AA and AAA requirements. Get instant pass/fail results and auto-suggested accessible alternatives.
Try it free
Heading Structure Checker
Analyze any page's heading hierarchy. Detect missing h1 tags, skipped levels, and structure issues that hurt accessibility and SEO.
Try it free
Alt Text Checker
Scan any page for missing, empty, or suspicious image alt text. Get a full report with fix recommendations for each image.
Try it free
More Tools Coming Soon
Meta Tag Checker
Validate title tags, meta descriptions, Open Graph, and Twitter cards.
Mobile Responsiveness Tester
Check how your site renders across common mobile viewports.
ARIA Attribute Checker
Detect incorrect or missing ARIA roles, states, and properties.
Frequently Asked Questions
How are these different from a full UX audit?
Each tool checks one specific aspect of your site. A full VertaaUX audit scans your entire page across 7 dimensions (accessibility, usability, clarity, information architecture, conversion, semantic HTML, and keyboard navigation) and provides a prioritized report with code-level fix recommendations.
Can I use these tools on any website?
The URL-based tools (heading checker, alt text checker) work on any publicly accessible website. The color contrast checker works with any color values you enter. Some sites may block automated fetching, in which case you'll see an error message.
Want a comprehensive audit?
These tools check one thing at a time. A full VertaaUX audit scans your entire page across 7 dimensions with actionable, code-level fix recommendations.
Run a free UX audit