Semgrep vs Sourcery
Semgrep and Sourcery are both popular tools in the Code Review & Testing space. Both use a freemium pricing model, with Semgrep starting at Free and Sourcery 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 Semgrep if you want fast, customizable static analysis for finding bugs and security issues. Semgrep's biggest strengths include extremely fast performance compared to traditional sast tools and easy-to-write custom rules without deep ast knowledge. It's also rated higher (4.3 vs 4.1). Choose Sourcery if you prefer ai-powered python code review and refactoring assistant.. Key advantages include excellent at improving python code quality and real-time ide integration catches issues as you code.
Fast, customizable static analysis for finding bugs and security issues
AI-powered Python code review and refactoring assistant.
| Semgrep | Sourcery | |
|---|---|---|
| Pricing | Free | Free |
| Free Tier | Yes | Yes |
| Pricing Model | Freemium | Freemium |
| Rating | ★ 4.3 | ★ 4.1 |
| Categories | Code Review & Testing | Code Review & Testing |
| Key Features | 6 features | 6 features |
| Feature | Semgrep | Sourcery |
|---|---|---|
| Pattern-based code scanning across 30+ programming languages | ✓ | — |
| Custom rule creation with intuitive YAML syntax | ✓ | — |
| Thousands of pre-built security and code quality rules | ✓ | — |
| CI/CD integration with GitHub Actions, GitLab, and more | ✓ | — |
| Fast local scanning with minimal false positives | ✓ | — |
| Differential scanning to analyze only changed code | ✓ | — |
| AI-powered Python code review and refactoring | — | ✓ |
| Real-time suggestions in VS Code and PyCharm | — | ✓ |
| GitHub PR review integration | — | ✓ |
| Code quality metrics and scoring | — | ✓ |
| Custom rule configuration | — | ✓ |
| Batch refactoring across entire projects | — | ✓ |
Semgrep
Pros
- + Extremely fast performance compared to traditional SAST tools
- + Easy-to-write custom rules without deep AST knowledge
- + Strong open-source community with extensive rule library
- + Privacy-first with local scanning and no code upload required
Cons
- − Advanced features like cross-file analysis require paid plans
- − Learning curve for writing complex multi-pattern rules
- − Language support maturity varies across different ecosystems
Sourcery
Pros
- + Excellent at improving Python code quality
- + Real-time IDE integration catches issues as you code
- + Free tier available for open-source and individual use
- + Suggestions are genuinely useful, not just style nits
Cons
- − Python-focused — limited support for other languages
- − Some suggestions may not match team conventions
- − Advanced features require paid plan
The Bottom Line
Choose Semgrep if: you want fast, customizable static analysis for finding bugs and security issues. It's completely free to use. It holds a higher user rating (4.3 vs 4.1). Keep in mind: advanced features like cross-file analysis require paid plans.
Choose Sourcery if: you prefer ai-powered python code review and refactoring assistant.. It's completely free to use. Keep in mind: python-focused — limited support for other languages.
Both tools compete in the Code Review & Testing space. The right choice depends on your specific needs, team size, and budget.
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