CodeRabbit
AI code reviewer that automatically analyzes every pull request on GitHub, GitLab, and Bitbucket - 13M+ PRs reviewed, #1 on GitHub Marketplace.
CodeRabbit is the most widely adopted AI PR reviewer, holding the #1 most-installed AI app position on both GitHub Marketplace and GitLab Marketplace. It connects to any repository via OAuth and reviews every pull request automatically - providing line-by-line feedback grounded in codebase context, identifying follow-on work via its Issue Planner, and enabling PR-level AI chat. As of April 2026, CodeRabbit has reviewed 13M+ PRs across 2M+ repos for 8,000+ paying customers, reaching $40M ARR with ~700% year-over-year growth. The company raised a $60M Series B in September 2025, led by Scale Venture Partners with NVIDIA Ventures participation, valuing it at $550M. For public and open-source repositories, CodeRabbit is completely free.
Key Features
- Automatic PR review on every pull request - no manual trigger required
- Line-by-line code feedback grounded in full repository context
- Issue Planner - AI identifies follow-on work and technical debt surfaced by each PR
- PR chat - ask questions about the current PR in a threaded conversation
- .coderabbit.yaml for project-level configuration of tone, focus areas, and file exclusions
- GitHub, GitLab, Bitbucket, and Azure DevOps integration
- Security vulnerability and dependency risk flagging on every review
Use Cases
- Engineering teams with PR review bottlenecks - CodeRabbit reviews in minutes, not days
- Open-source project maintainers automating review for external contributor PRs at no cost
- Teams enforcing consistent code quality standards without adding reviewer headcount
- Security-focused teams catching common vulnerability patterns before merge
- Remote and async teams where synchronous code review creates delays across time zones
Pros
- Free for all public repos - zero cost for open-source maintainers regardless of PR volume
- 13M+ PRs reviewed at $40M ARR - one of the most battle-tested AI review tools in production
- .coderabbit.yaml config lets teams precisely tune what gets flagged and what gets ignored
Cons
- At $24/developer/month (annual Pro), costs scale significantly for large engineering organizations
- Cannot replace human reviewers for architectural decisions, business logic, and system design
- Occasional false positives on auto-generated code or intentional patterns without config exclusions
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