Percy vs DeepSource
Percy and DeepSource are both popular tools in the Code Review & Testing space. Both use a freemium pricing model, with Percy starting at Free and DeepSource at Free. Both offer a free tier to get started. Below we break down features, pricing, strengths, and weaknesses to help you decide which tool fits your workflow best.
Last updated: March 2026
Quick Verdict
Choose Percy if you want automated visual testing to catch ui regressions in every pr.. Percy's biggest strengths include catches visual regressions that unit tests miss and excellent cross-browser testing coverage. Choose DeepSource if you prefer automated code quality and security analysis for modern teams.. Key advantages include autofix prs save significant remediation time and free for open-source projects. It's also rated higher (4.3 vs 4.2).
Automated visual testing to catch UI regressions in every PR.
Automated code quality and security analysis for modern teams.
| Percy | DeepSource | |
|---|---|---|
| Pricing | Free | Free |
| Free Tier | Yes | Yes |
| Pricing Model | Freemium | Freemium |
| Rating | ★ 4.2 | ★ 4.3 |
| Categories | Code Review & Testing | Code Review & Testing |
| Key Features | 6 features | 6 features |
| Feature | Percy | DeepSource |
|---|---|---|
| Automated visual regression testing | ✓ | — |
| Cross-browser screenshot comparison | ✓ | — |
| Responsive design testing across screen sizes | ✓ | — |
| GitHub and GitLab PR integration | ✓ | — |
| Approval workflows for visual changes | ✓ | — |
| Integration with Cypress, Playwright, and Storybook | ✓ | — |
| Static code analysis across multiple languages | — | ✓ |
| Automated fix generation with Autofix PRs | — | ✓ |
| Security vulnerability detection | — | ✓ |
| Code coverage tracking and enforcement | — | ✓ |
| GitHub, GitLab, and Bitbucket integration | — | ✓ |
| Custom analysis rules and configurations | — | ✓ |
Percy
Pros
- + Catches visual regressions that unit tests miss
- + Excellent cross-browser testing coverage
- + Good integration with popular testing frameworks
- + Approval workflow makes review process clear
Cons
- − Free tier limited to a small number of screenshots
- − Can produce false positives from dynamic content
- − Pricing scales with screenshot volume
DeepSource
Pros
- + Autofix PRs save significant remediation time
- + Free for open-source projects
- + Broad language support with deep analysis
- + Clean dashboard for tracking code health
Cons
- − Some language analyzers more mature than others
- − Can produce false positives on complex patterns
- − Enterprise features require paid plan
The Bottom Line
Choose Percy if: you want automated visual testing to catch ui regressions in every pr.. It's completely free to use. Keep in mind: free tier limited to a small number of screenshots.
Choose DeepSource if: you prefer automated code quality and security analysis for modern teams.. It's completely free to use. It holds a higher user rating (4.3 vs 4.2). Keep in mind: some language analyzers more mature than others.
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