A11yInspect vs HTML_CodeSniffer
A11yInspect
barrierbreak.comHTML_CodeSniffer
squizlabs.github.ioSide by side
| Figure | A11yInspect | HTML_CodeSniffer |
|---|---|---|
| Price from | $10/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 0 |
| Spec score · Accessibility Testing Software | 9.2 (#3) | 7.4 (#135) |
| Spec score · Website Accessibility Tools | 9.2 (#3) | 7.3 (#111) |
| Browser extension | Yes | No |
| browser support | The extension is available for Chrome, Edge and Firefox browsers. | The site says its auditor bookmarklet is designed to work with Google Chrome, Firefox, Safari, and Internet Explorer. |
| support | Support is available through [email protected], with billing questions handled at [email protected]. | The project README directs users to its GitHub issue tracker to report problems and welcomes contributions through pull requests. |
Plans
In their own words
A11yInspect
A11yInspect is a browser extension that works with the Inspect tool in DevTools to assess web-page accessibility against WCAG 2.2. Automated checks cover more than 600 issues across 30 Success Criteria, with a stated false-positive rate below 1%. Results classify findings as Fails, Validates, or Suggestions and map them to criteria and severity. Supported standards include WCAG, Section 508, EN 301 549, GIGW 3.0, and IS 17802. Manual review tools include bookmarklets for headings, tab order, grayscale, target size, text spacing, and forms, as well as a color contrast checker. The extension is available for Chrome, Edge, and Firefox and can examine a page or a specific element. Pages can be tested in any language, although the interface is English-only; the extension is for desktop browsers and cannot be used on mobile. The Free plan allows unlimited webpage testing without login or a credit card. Pro costs $120.00 per year and includes a 30-day trial without a card; users move to Free if they do not subscribe when it ends.
HTML_CodeSniffer
HTML_CodeSniffer has no write-up on Specifiction yet; its figures are above.