Pa11y vs Percy: Which is Better in 2026?
Choosing between Pa11y and Percy comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Pa11y
Free and open-source tools to help designers and developers make web pages more accessible.
Best for you if:
- • You need developer tools features specifically
- • Provides free and open-source web accessibility testing tools.
- • Offers CLI tools for developers and a dashboard for non-developers.
Percy
Catch UI bugs with automated visual regression testing
Best for you if:
- • You need testing & QA features specifically
- • Percy is a visual testing platform for catching UI bugs in CI
- • It captures screenshots and detects visual changes across browsers
| At a Glance |  Pa11y |  Percy |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Developer Tools | Testing & QA |
Rating | - | - |
Choose Pa11y or Percy?
Choose Pa11y if
Free and open-source tools to help designers and developers make web pages more accessible.
- Completely free and open-source
- Offers multiple tools for different use cases (CLI, Dashboard, Webservice, CI)
- Helps track accessibility trends over time with graphs
- Your work is developer tools-shaped, not testing & QA-shaped
Choose Percy if
Catch UI bugs with automated visual regression testing
- Easy visual review
- CI/CD integration
- Responsive testing
- Your work is testing & QA-shaped, not developer tools-shaped
| Feature | Pa11y | Percy |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | No ratings yet | No ratings yet |
| Categories | Developer ToolsTesting & QA | Testing & QAScreenshot Tools |
In-Depth Analysis
Pa11y
Free and open-source tools to help designers and developers make web pages more accessible.
Strengths
- +Completely free and open-source
- +Offers multiple tools for different use cases (CLI, Dashboard, Webservice, CI)
- +Helps track accessibility trends over time with graphs
- +Supports integration into continuous integration workflows
Weaknesses
- -Requires some technical knowledge for CLI and Webservice tools
- -Dashboard might require setup and hosting by the user
Key features
Percy
Catch UI bugs with automated visual regression testing
Strengths
- +Easy visual review
- +CI/CD integration
- +Responsive testing
Weaknesses
- -Can get expensive
- -Snapshot limits
Key features
Pricing: Pa11y vs Percy
| Plan | Pa11y | Percy |
|---|---|---|
| Tier 1 | Free Pa11y | Free Free |
| Tier 2 | Free Pa11y Dashboard | $399 month Team |
| Tier 3 | Free Pa11y Webservice | N/A |
| Tier 4 | Free Pa11y CI | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Pa11y pricing and Percy pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Pa11y
Want the highest-rated option?
Neither has ratings yet.
Too early to call on ratings — compare on features and pricing.
Value user reviews?
Neither has ratings yet.
Too early to call — neither has ratings yet.
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Pa11y is a developer tools tool. Percy is in testing & QA. Pick the category that matches your needs.
How important are ratings?
Neither has ratings yet.
Key Takeaways
Percy
- Free tier available
- Our pick for this comparison
Pa11y
- Better fit for developer tools
The Bottom Line
Percy is our pick.
Frequently Asked Questions
Is Pa11y or Percy better?
Percy is rated in our evaluation. Both are freemium.
What are Pa11y and Percy used for?
Pa11y: Free and open-source tools to help designers and developers make web pages more accessible.. Percy: Catch UI bugs with automated visual regression testing.
What does Pa11y cost vs Percy?
Pa11y is freemium (free tier + paid plans). Percy is freemium (free tier + paid plans). Visit their websites for detailed pricing.