Sweep vs Percy
Sweep and Percy are both popular tools in the Code Review & Testing space. Both use a freemium pricing model, with Sweep starting at Free and Percy 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 Sweep if you want ai junior developer that turns github issues into pull requests.. Sweep's biggest strengths include seamless github integration — works like a team member and great for routine tasks that don't need senior attention. Choose Percy if you prefer automated visual testing to catch ui regressions in every pr.. Key advantages include catches visual regressions that unit tests miss and excellent cross-browser testing coverage. It's also rated higher (4.2 vs 3.8).
AI junior developer that turns GitHub issues into pull requests.
Automated visual testing to catch UI regressions in every PR.
| Sweep | Percy | |
|---|---|---|
| Pricing | Free | Free |
| Free Tier | Yes | Yes |
| Pricing Model | Freemium | Freemium |
| Rating | ★ 3.8 | ★ 4.2 |
| Categories | AI Agents, Code Review & Testing | Code Review & Testing |
| Key Features | 6 features | 6 features |
| Feature | Sweep | Percy |
|---|---|---|
| Converts GitHub issues into pull requests automatically | ✓ | — |
| Full codebase understanding for context-aware changes | ✓ | — |
| Handles bug fixes, refactors, and small features | ✓ | — |
| Iterates on PR feedback from code reviews | ✓ | — |
| Integrates directly with GitHub workflows | ✓ | — |
| Configurable rules for code style and patterns | ✓ | — |
| 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 | — | ✓ |
Sweep
Pros
- + Seamless GitHub integration — works like a team member
- + Great for routine tasks that don't need senior attention
- + Iterates on review feedback automatically
- + Free tier available for open-source projects
Cons
- − Limited to GitHub — no GitLab or Bitbucket support
- − Struggles with complex architectural changes
- − Quality varies significantly by task complexity
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
The Bottom Line
Choose Sweep if: you want ai junior developer that turns github issues into pull requests.. It's completely free to use. Keep in mind: limited to github — no gitlab or bitbucket support.
Choose Percy if: you prefer automated visual testing to catch ui regressions in every pr.. It's completely free to use. It holds a higher user rating (4.2 vs 3.8). Keep in mind: free tier limited to a small number of screenshots.
Both tools compete in the Code Review & Testing space. The right choice depends on your specific needs, team size, and budget.
