Side by side
AccessibilityScanner.app vs Sa11y
Both stand on website accessibility tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Web
AccessibilityScanner.app combines automated accessibility scans with remediation guidance and integration options. Check the page and monitored-site limits against your needs; manual review tools are not included.
Visit AccessibilityScanner.app Free plan ExtensionWeb
Sa11y is a focused, no-cost page checker with visual guidance and customizable checks. It complements broader accessibility work but is not a full code-analysis tool or overlay.
Visit Sa11yThe facts
| AccessibilityScanner.app | Sa11y | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | Extension, Web |
| Lowest paid plan | Starter annual: $190 a year | Free or on request |
| Plans published | 5 | 2 |
| Maker | AccessibilityScanner.app | Sa11y |
| Website | accessibilityscanner.app | sa11y.netlify.app |
| On website accessibility tools | #48 of 133 | #52 of 133 |
AccessibilityScanner.app: what it does well
- Covers WCAG 2.2.
- Includes remediation guidance.
- Offers a browser extension and CI/CD integration.
- Pro includes daily re-scans.
What to know first
- No manual review tools.
- Free plan has no monitoring.
- Free audits cover up to 3 pages.
Sa11y: what it does well
- Free and open source
- More than 80 accessibility checks
- States WCAG 2.1 support
- Exports results to CSV or HTML
- Offers customizable and custom checks
What to know first
- Checks pages rather than comprehensive code
- Does not verify complex ARIA implementation
- Bookmarklet may fail under site security policies
- No browser extension
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