Sa11y
Sa11y: A free, open-source page checker for CMS teams that need practical accessibility guidance. Ranked #86 of 129 in Website Accessibility Tools by our editors (3.0/10); pricing: Free plan; best for free CMS-integrated page checks.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forFree CMS-integrated page checks
- Free planYes
- Paid fromFree
- WCAG versionWcag 2.1
- Founded2020 · Toronto, Canada
- Facts checked22 Sep 2026
Where it wins
- More than 80 accessibility and usability checks run in the browser
- Visual annotations provide guidance for resolving page issues
- Integrates with WordPress, Joomla, Drupal, Pressbooks, and AEM
Where it doesn't
- Page-focused scope does not cover broader automated delivery workflows
- Coverage is specified for WCAG 2.1 rather than newer WCAG versions
- No browser extension is provided
Our verdict on Sa11y
Sa11y is a free, open-source JavaScript accessibility checker for content authors and CMS teams. It runs in the browser, automatically checking page content as it loads and highlighting accessibility and usability issues directly on the page. The tool covers more than 80 checks across headings, links, images, contrast, page structure, forms, embedded content, and other content-quality concerns. It is available as a JavaScript plugin, CMS integration, or bookmarklet, making it suited to teams that review pages during content creation rather than centralize large-scale scanning operations.
The published Free plan includes the open-source checker, more than 80 accessibility checks, and browser-based operation. Its review features extend beyond issue detection: visual annotations include remediation guidance, while heading outline and image review panels support focused content checks. Contrast checking, colour filters, readability scoring, configurable checks, custom exclusions, and CSV or HTML exports add flexibility for editorial workflows. Open Shadow DOM and web-component checking also support pages that use those structures.
Sa11y fits teams working in WordPress, Joomla, Drupal, Pressbooks, or Adobe Experience Manager, with integrations that place page checks closer to existing CMS workflows. Its scope is page-focused and its stated coverage is WCAG 2.1, so organizations seeking CI/CD or API-based accessibility processes should consider a broader platform instead. Choose Sa11y when content authors need free, open-source checks with visible guidance and export options; choose an alternative when accessibility monitoring must extend beyond individual pages or into automated delivery pipelines.
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Sa11y pricing
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Sa11y fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| WCAG version | Wcag 2.1 |
| Scan scope | Page |
| Scan limit | Not verified |
| Scheduled scans | Not verified |
| Browser extension | No |
| CI/CD integration | Not verified |
| API access | Not verified |
| Deployment | Self-hosted |
| Platforms | Web |
| Support | Email, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 5 integrations: WordPress, Joomla, Drupal, Pressbooks, Adobe Experience Manager |
| Pricing | Free plan (source) |
| Website | sa11y.netlify.app |
| Facts checked | 22 Sep 2026 |
Sa11y integrations
Sa11y lists 5 integrations on its own site.
- WordPress
- Joomla
- Drupal
- Pressbooks
- Adobe Experience Manager
Alternatives to Sa11y
- Octopus Scanner (formerly A11y Scanner)A free desktop scanner for detailed local audits of complex websites.9.3
- WAVEA flexible accessibility suite spanning free page checks, browser extensions, APIs, and CI workflows.9.1
- IBM Equal Access Accessibility CheckerA technically focused toolkit for browser, batch, and CI/CD accessibility checks.9.0
Used Sa11y? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Sa11y for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
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Featured on iTechGuides
Sa11y is listed in our Website Accessibility Tools directory. Add the badge to your site — it links back to this page.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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