Statable WCAG Checker 作者： Statable
See a page's WCAG accessibility problems in a sidebar, with the failing elements highlighted right on the page.
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Statable WCAG Checker finds accessibility problems on the page you are looking at and shows them in Firefox's sidebar: what failed, which WCAG success criterion it belongs to, how many elements are affected, and how to fix it.
Open the sidebar and it scans. There is no button to press and no page to configure — the scan starts when the page has loaded and runs again when you navigate or switch tabs, so what you read always belongs to the page in front of you.
WHAT IT CHECKS
Colour contrast, missing text alternatives, form fields without labels, links and buttons without an accessible name, heading structure, ARIA misuse, target sizes, page language and document title — the checks defined by WCAG 2.0, 2.1 and 2.2 at levels A and AA.
The checks are performed by axe-core, the open-source engine behind Lighthouse's accessibility audit, running entirely inside your browser.
SEE THE PROBLEM, AND THE FIX
Every finding can outline its elements on the page and scroll to the first one, so you are looking at the actual element rather than a selector. For contrast failures the panel can also recolour the text in place to the nearest passing value, so you can see the fix before you make it. Both are reversible and disappear when you close the sidebar.
Frames are included. Cookie banners, video players and embedded forms usually live in an iframe, and a report that ignored them would call a visibly broken page clean.
WHAT IT DOES NOT DO
Automated checks cover only part of WCAG. A clean result means no automatically detectable issues were found — it does not mean the page is accessible, and it is not a compliance certificate. Things like whether alt text is meaningful, whether focus order makes sense, or whether a video's captions are accurate can only be judged by a person.
PRIVACY
Nothing leaves your browser. The extension makes no network requests of its own, has no server, no analytics and no telemetry, requires no account, and stores nothing — reports live in memory and are gone when you navigate away. It does nothing at all until you open the sidebar.
Firefox asks for access to your data for all websites: reading the page is the audit. There is nothing to check without it, and nothing read is ever sent anywhere.
Full policy: https://statable.com/legal/wcag-checker-privacy
Made by the team behind Statable, privacy-first web analytics.
Open the sidebar and it scans. There is no button to press and no page to configure — the scan starts when the page has loaded and runs again when you navigate or switch tabs, so what you read always belongs to the page in front of you.
WHAT IT CHECKS
Colour contrast, missing text alternatives, form fields without labels, links and buttons without an accessible name, heading structure, ARIA misuse, target sizes, page language and document title — the checks defined by WCAG 2.0, 2.1 and 2.2 at levels A and AA.
The checks are performed by axe-core, the open-source engine behind Lighthouse's accessibility audit, running entirely inside your browser.
SEE THE PROBLEM, AND THE FIX
Every finding can outline its elements on the page and scroll to the first one, so you are looking at the actual element rather than a selector. For contrast failures the panel can also recolour the text in place to the nearest passing value, so you can see the fix before you make it. Both are reversible and disappear when you close the sidebar.
Frames are included. Cookie banners, video players and embedded forms usually live in an iframe, and a report that ignored them would call a visibly broken page clean.
WHAT IT DOES NOT DO
Automated checks cover only part of WCAG. A clean result means no automatically detectable issues were found — it does not mean the page is accessible, and it is not a compliance certificate. Things like whether alt text is meaningful, whether focus order makes sense, or whether a video's captions are accurate can only be judged by a person.
PRIVACY
Nothing leaves your browser. The extension makes no network requests of its own, has no server, no analytics and no telemetry, requires no account, and stores nothing — reports live in memory and are gone when you navigate away. It does nothing at all until you open the sidebar.
Firefox asks for access to your data for all websites: reading the page is the audit. There is nothing to check without it, and nothing read is ever sent anywhere.
Full policy: https://statable.com/legal/wcag-checker-privacy
Made by the team behind Statable, privacy-first web analytics.
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Bug reports and feature requests: support@statable.com