Web Accessibility Scanner
A free Chrome extension that checks any web page against WCAG and EN 301 549, right in your browser. Calm, honest, and private. Nothing leaves your device.
Free. No sign-up. Runs locally in your browser.
What you get
Open the side panel, run a scan, and the scanner checks the page you are on against common accessibility standards, then groups what it finds so the results are readable.
Scan against your standard
Run a check against WCAG or EN 301 549, with WCAG 2.1 AA as the default. You pick the standard that matters to your audience.
Plain-English categories
Findings are sorted into clear, readable categories rather than raw rule names, so you get a summary instead of a wall of error codes.
To fix and to review
An honest split between things it is confident are problems and things only a person can judge, so you know where to focus first.
Click to highlight
Click any finding to highlight the exact element it points at on the page, so you can see what each issue refers to.
Order and structure
Extra views for reading order, plus heading and landmark structure, to see a page the way assistive technology does.
Live contrast checker
Eyedrop any two colours for an instant AA and AAA verdict on normal and large text, without leaving the page.
How it works
Add it to Chrome
Install the free extension from the Chrome Web Store. No account or sign-up needed.
Open the side panel
On any page you want to check, open the AUDITSU Web Scanner side panel and run a scan.
Read and act
Work through the grouped findings, highlight elements on the page, then hand the rest to a person.
Stays on your device
The scan runs locally in your browser. The page is read on your machine to run the check, and nothing is sent anywhere, stored, or tracked. No account or sign-up needed.
A starting point, not a full audit
Automated checks catch some accessibility issues but miss plenty that only a person can spot, and the share they catch is genuinely modest. The scanner cannot certify that a page is compliant. Treat the results as a guide, then have a human review the rest.
Ready to audit your whole site?
The scanner is a quick check on a single page. A free Auditsu website audit walks your team through every WCAG check, tracks the fixes, and generates your accessibility statement. No cost, no expertise required.