Free Website Accessibility Checker

What a free accessibility checker catches

Loupe runs the axe-core rules engine — the same engine trusted in professional testing — across the machine-verifiable WCAG 2.2 criteria:

• Colour contrastText and UI components that don't meet 4.5:1 (or 3:1 for large text and graphics) against their background. 1.4.3, 1.4.11
• Missing alt textImages, icons, and controls with no text alternative for screen readers. 1.1.1
• Unlabeled form fieldsInputs without an associated label, so users don't know what to type. 3.3.2, 4.1.2
• Broken ARIAInvalid roles, references that point nowhere, and components missing an accessible name. 4.1.2
• Heading & landmark structureSkipped heading levels and missing landmarks that screen-reader users rely on to navigate. 1.3.1
• Keyboard & focusFocus order problems and elements that can't be reached or operated by keyboard. 2.4.3, 2.1.1
• Link & button namesEmpty or ambiguous accessible names like a bare "click here" or an icon button with no label. 2.4.4, 4.1.2
• Document basicsA missing page language and duplicate ids that confuse assistive tech. 3.1.1

How to check your site's accessibility for free

No account, no upload, no waiting on an email report:

1. Add Loupe to Chrome or Edge.It's free and installs in one click — no signup.
2. Open the page you want to check.Live, staging, or behind a login — it all works, because the scan runs locally.
3. Click the Loupe icon.It runs an instant WCAG 2.2 audit with axe-core and highlights every issue right on the page.
4. Read each issue in plain English.What's wrong, why it matters, and how to fix it — no decoding cryptic rule IDs.
5. Go deeper when you need to Pro.Crawl multiple pages into one report, get AI-written explanations, and export a white-label PDF for clients.

What a free checker can — and can't — do

Here's the honest version, because it matters: an automated checker catches a large share of real accessibility issues instantly, and that's the fastest way to clear the bulk of the work. But no scanner catches everything. Whether alt text is actually meaningful, whether the reading order makes sense, whether an error message is genuinely helpful — those need a human. Anyone selling you "100% compliant in one click" (usually an overlay widget) is selling you a problem, not a fix.

So use a free checker as your powerful first pass: it removes the obvious, measurable issues in seconds, and tells you exactly where to focus your manual review. That's precisely what Loupe is built to do — and it stays free for scanning, for as long as you use it.