AI WCAG Accessibility Checker
Paste an HTML snippet, get WCAG issues explained — not just flagged.
A component, a page section, or a full page body — no live URL fetch needed.
The actual screen-reader or keyboard-navigation behavior behind each flag, not a bare checklist item.
Empty alt vs. missing alt, keyboard focus, heading order — each gets its own specific fix, not one generic note.
Most accessibility checkers fetch a live URL and return a compliance score against a big checklist — useful for an audit, but a score doesn't teach you why something failed. This tool works from a pasted HTML snippet and explains the actual assistive-technology mechanism behind each flagged issue. Given a snippet with an `<img src="banner.jpg">` that has no alt attribute at all, a `<div onclick="submit()">Submit</div>` standing in for a real button, and a heading that jumps from `<h1>` straight to `<h3>`, the explanation doesn't just say "add alt text" — it states that a genuinely missing alt attribute causes many screen readers to announce the image's filename instead of staying silent, which is worse than an empty `alt=""` that properly tells the reader to skip it. The clickable div gets flagged because it has no keyboard focus and no accessible role — a keyboard-only or screen-reader user literally cannot activate it — with the fix stated specifically: use a real `<button>`, or add `role="button"`, `tabindex="0"`, and a keydown handler. The skipped heading level gets flagged because screen reader users frequently navigate a page by jumping between headings, and a skipped level breaks that navigation model even when the page looks completely normal visually. That distinction — alt="" versus no alt attribute, in particular — is the single most common mix-up in accessibility work, and most generic scanners collapse both into one "missing alt text" warning without explaining that they need different fixes. It's built for anyone shipping HTML who wants a fast sanity check before a real audit — a developer reviewing a PR, someone building a landing page by hand, or a content team pasting a component before it goes live. One honest limitation: this checks static markup, not rendered color contrast or dynamic ARIA state changes, which need a real browser and a heavier tool to verify properly. Built by EngraveOcean as part of a small, growing set of free AI developer utilities, alongside AI JSON Schema Explainer, AI Error/Stack Trace Explainer, and AI Regex Explainer — no login, no daily cap.