What is CodeRabbit?
CodeRabbit is an AI code reviewer that reads every pull request and leaves line-by-line comments in GitHub, GitLab and Bitbucket. It is built by CodeRabbit, which raised a $60 million Series B in September 2025, and it is one of the most installed AI review apps on GitHub. Reviews are free forever on public repositories, and private repositories use paid plans after a 14-day trial.
Unlike a chat assistant inside the editor, CodeRabbit works where the team already reviews code. It summarises each pull request, flags likely bugs and security issues, suggests one-click fixes and learns from feedback so later reviews follow the team's conventions. Higher plans add triage, custom checks, blast radius analysis that shows what a change could affect, and security review on every PR. Reviews are also available in the IDE and CLI before code is pushed. Teams use it to catch issues earlier, keep reviews moving when senior engineers are busy, and keep a consistent standard as more code is written with AI.
Main Features
- Comment line by line on pull requests in GitHub, GitLab and Bitbucket.
- Summarise each pull request and explain what changed.
- Suggest one-click fixes that can be committed from the review.
- Learn team conventions from feedback and apply them in later reviews.
- Run custom checks and triage on Team plans and above.
- Analyse blast radius and run security review per PR on the Advanced plan.
- Review code in the IDE or CLI before it is pushed.
How to Get Started with CodeRabbit
- Sign up at coderabbit.ai with your GitHub, GitLab or Bitbucket account.
- Install the CodeRabbit app on the repositories you want reviewed.
- Open a pull request and wait for the automatic review comments.
- Reply to comments to ask questions or teach CodeRabbit your preferences.
- Add a configuration file to set review rules and paths to ignore.
CodeRabbit Pricing
CodeRabbit is free forever for reviews on public open-source repositories, and paid plans have a 14-day free trial with no credit card. Billed annually, Essentials costs $24 per developer per month, Team costs $48 and Advanced costs $72, and Enterprise is priced by quote with SSO and self-hosting. Only developers who open pull requests are charged.
Who Should Use It?
- Engineering teams that want faster, more consistent code reviews.
- Open-source maintainers reviewing outside contributions for free.
- Startups without enough senior reviewers.
- Teams shipping a lot of AI-generated code that needs checking.
- Security-minded teams that want per-PR security review.
CodeRabbit Alternatives
- Greptile: AI reviewer that indexes the whole codebase for context.
- GitHub Copilot: Includes PR review for teams already paying for Copilot.
- Factory: Coding agents that can review as well as write code.
Frequently Asked Questions
Is CodeRabbit free?
Yes, CodeRabbit is free forever for public open-source repositories. Private repositories need a paid plan starting at $24 per developer per month billed annually, with a 14-day free trial.
Does CodeRabbit work with GitLab and Bitbucket?
Yes, CodeRabbit reviews pull requests on GitHub, GitLab and Bitbucket. It also has IDE and CLI reviews.
CodeRabbit vs GitHub Copilot code review: which is better?
CodeRabbit is better if you want a dedicated reviewer with custom checks and learning from team feedback across several Git hosts. Copilot review is convenient if your team already pays for Copilot on GitHub.
Can CodeRabbit be self-hosted?
Yes, but only on the Enterprise plan. Enterprise also adds SSO, custom role-based access and API access for companies with stricter security needs.