CodeRabbit is an AI pull request review platform available as a GitHub, GitLab, Bitbucket, and Azure DevOps app. On each PR, the agent reads the full diff, surrounding codebase context, and a per-repository learned knowledge base, then produces a walkthrough summary, inline comments, and committable fix suggestions that push directly to the branch.
CodeRabbit chains established linters and SAST tools (ESLint, Ruff, Semgrep, Gitleaks, golangci-lint) into the review pipeline so findings are grounded in deterministic analysis rather than LLM pattern-matching alone. The knowledge base adapts to reviewer feedback: patterns that teams accept or dismiss are incorporated into future reviews on that repository.
An agentic chat interface allows reviewers to ask follow-up questions, request alternative implementations, or generate unit tests on demand. Pro Plus adds an issue planner that converts Linear or Jira tickets into scoped implementation plans before the PR opens. Pricing: free tier for public and private repos; Pro at $12/seat/month.