Free accessibility tools
A growing toolkit to check and improve your site's accessibility — no signup required. Each tool runs instantly in your browser.
Color & Contrast
Site Scanners
Structure & Semantics
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Heading Structure Checker
Visualise the H1–H6 outline of any markup and catch skipped levels or missing headings.
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HTML Lang & Document Setup Checker
Verify a page declares a language, title, charset, and viewport correctly.
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Link Text Quality Checker
Flag vague “click here” links, raw-URL text, and empty or icon-only links.
Forms
Images & Content
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Alt Text Generator
Upload an image and get an AI-written, screen-reader-ready alt-text suggestion.
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Alt Text Quality Reviewer
Grade existing alt text for redundant phrases, filenames, length, and emptiness.
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Readability & Reading-Level Scorer
Score page copy with Flesch, Flesch–Kincaid, SMOG, and Gunning Fog readability formulas.