Sourcery
4.3 / 5AI code review that makes your code cleaner, not just correct.
How we rated it
4.3
out of 5
Weighted score: features & compliance (25% each), ease of use & value (20% each), support (10%).
- Features & depthBreadth and quality of capabilities4.2
- Compliance & securityData handling, certifications, privacy posture4.2
- Ease of useHow intuitive and frictionless the tool is4.5
- Value for moneyPricing vs. what you get4.6
- Support & reliabilityUptime, support quality, vendor responsiveness4.1
Key facts
- Starting price
- $10/month
- Pricing model
- Per user
- Free tier
- Yes
- Free trial
- No
- Trains on user data
- No
- Launched
- 2020
- Users
- 300,000+
- Platforms
- Vs-code, Cursor, Jetbrains, Github
- HQ
- London, UK
- Last updated
- July 2026
About Sourcery
Sourcery is an AI code-review and quality tool. Where most reviewers hunt for bugs, Sourcery's focus is on making code cleaner, more readable, and more idiomatic — it suggests better patterns and refactors rather than only flagging errors. It began as a Python refactoring engine and remains Python-first, with 200+ built-in rules and optional style guides, while now supporting review across 30+ languages.
Its standout capability is real-time review inside the editor. Sourcery runs in VS Code, Cursor, and JetBrains IDEs, offering feedback as you write rather than only at pull-request time — a rarity among code-review tools, most of which are PR-only. It also does full PR review with summaries, diagrams, and line-by-line comments, plus security scanning and custom rules defined in a config file.
Sourcery is used by 300,000+ developers at companies including HelloFresh, Cisco, and Red Hat. Its Pro tier is one of the cheapest meaningful entry points in the category, and it doesn't train on private code. It's the strongest choice for Python-heavy teams who want to elevate code quality, though its language depth is concentrated on Python and JavaScript rather than Java, Go, or Rust.
Pricing breakdown
Free
Free
per month
- Pro-level review for open-source repositories
- Real-time IDE review
- Core Python quality rules
Pro
$12/mo
$10/mo billed annually
per user/month
- Private repository review
- Real-time IDE feedback
- 200+ Python rules and custom rules
Team
$24/mo
per user/month
- Security scanning
- Team analytics
- Custom rules across many repositories
Enterprise
Custom
custom
- Advanced audit logs
- Dedicated onboarding
- Volume pricing
All features
Real-time code review inside VS Code, Cursor, and JetBrains IDEs
Python-first: 200+ built-in rules with optional style guides
Deep idiomatic refactoring suggestions, not just bug flags
Full PR review with summaries, diagrams, and line-by-line feedback
Custom rules via a config file
Security scanning on Team and above
Integrations
| Integration | Type | Notes |
|---|---|---|
| VS Code | Native | — |
| Cursor | Native | — |
| JetBrains IDEs | Native | — |
| GitHub | Native | — |
Pros and cons
What it does well
- Best-in-class Python code-quality suggestions — teaches better patterns, not just flags errors
- Real-time IDE feedback is rare among code-review tools, which are mostly PR-only
- Cheapest paid tier with substantive private-repo support in the category
- Less noisy than broader reviewers on teams with established code standards
Limitations
- Language depth is concentrated on Python and JavaScript — weaker Java, Go, and Rust coverage
- Less capable at catching security bugs than reviewers with full integrated toolchains
- Security-scanning depth is lower than dedicated SAST tools
- Smaller brand recognition can make enterprise procurement harder
In-depth reviews
Alternatives to Sourcery
Qodo
4.3 / 5
The only AI tool that natively pairs code review with test generation — top benchmark accuracy and strong Java and on-prem support make it a standout for teams that need both.
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CodeRabbit
4.5 / 5
The most comprehensive AI code reviewer — its integrated static-analysis and security stack is unmatched — but per-seat pricing is high and large PRs need configuration tuning.
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GitHub Copilot
4.5 / 5
The safest default AI coding assistant — unmatched IDE reach and GitHub integration — but its agent mode trails the dedicated AI IDEs on deep codebase work.
View profileThe verdict
The best AI reviewer for Python code quality — real-time IDE feedback and idiomatic refactoring at the category's cheapest paid tier, though its language depth beyond Python is limited.
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