Side by side
Pa11y vs Testaro
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 APILinuxMac+3
Pa11y covers one-off checks, continuous integration, and daily monitoring, with multiple report formats and selectable standards. Check the Node.js requirement for Pa11y 10 before choosing it for a workflow.
Visit Pa11y Free plan APILinuxMac+2
Testaro provides a broad, self-hosted collection of web accessibility and standards checks in a uniform reporting workflow. Its installation requirements and WAVE’s URL-only limitation matter when planning coverage.
Visit TestaroThe facts
| Pa11y | Testaro | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Linux, Mac, Self-hosted, Web, Windows | API, Linux, Mac, Self-hosted, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | pa11y.org | github.com |
| On website accessibility tools | #5 of 133 | #57 of 133 |
Pa11y: what it does well
- Free, open-source tools for accessibility checks.
- Dashboard runs daily tests and graphs changes over time.
- Offers API access and CI/CD integration.
- CLI supports WCAG2AA, WCAG2A, and WCAG2AAA.
- Reports include CSV, HTML, JSON, and TSV.
What to know first
- Pa11y 10 requires Node.js 22.13.0 or above.
- Pa11y 10 requires an even-numbered Node.js version.
- Documented Windows installation requirements specify Windows 11.
Testaro: what it does well
- MIT-licensed and free to install independently
- Combines results from many rule engines
- About 1,300 rules across listed engines
- Supports daemon and single-job execution
- Includes remediation guidance and mobile testing
What to know first
- Requires Node.js 22.12 or later
- Playwright browser binaries must also be installed
- WAVE cannot test non-URL-accessible page states
Alternatives to Pa11y Alternatives to Testaro The whole list