9 AI Code Review Tools That Catch Bugs Before You Merge
Let AI review every pull request and catch bugs before they ship.
Key Takeaways
- Best all-rounder: CodeRabbit
- Best for GitHub users: GitHub Copilot
- Lowest per-user price: Sourcery, Korbit
- Best for open source: DeepSource
These are the 9 best AI code review tools for developers and startup teams in India, compared on what they review, where they work and what they cost.
Top 9 AI code review tools at a glance
| Tool | Best for | Free plan |
|---|---|---|
| 1. CodeRabbit | Teams on any Git host | Public repos |
| 2. GitHub Copilot | GitHub users | No code review |
| 3. Greptile | Full-codebase context | Yes, 1 developer |
| 4. Sourcery | Small teams on a budget | Public repos |
| 5. Qodo | Review rules and governance | Trial only |
| 6. Graphite | Fast PR workflows | Yes, limited |
| 7. Codacy | Code quality plus security | Yes |
| 8. DeepSource | Open-source projects | Open source |
| 9. Korbit | Low per-user price | Open source |
Jump toCodeRabbitGitHub CopilotGreptileSourceryQodoGraphiteCodacyDeepSourceKorbit
The 9 best AI code review tools in 2026
1. CodeRabbit
CodeRabbit reviews every pull request automatically and suggests fixes. It works with GitHub, GitLab, Bitbucket and Azure DevOps, so it suits teams on almost any Git setup.
Best for: Teams that want AI reviews on every pull request
Free plan: Free reviews forever for public repositories
Price: Essentials plan at $24 per user a month billed annually, or $30 billed monthly. 14-day free trial
Website: coderabbit.ai
2. GitHub Copilot
Copilot code review reviews your pull requests, points out issues and suggests fixes you can apply in a couple of clicks. It is the easiest pick if your code already lives on GitHub.
Best for: Developers already on GitHub
Free plan: Copilot Free does not include Copilot code review
Price: Copilot Pro at $10 a month, which includes pull request reviews in GitHub
Website: github.com/features/copilot
3. Greptile
Greptile's AI agents review pull requests with the full context of your codebase, not just the changed lines. It connects to GitHub, GitLab and Bitbucket.
Best for: Catching bugs that depend on the wider codebase
Free plan: Starter plan free for 1 active developer with 50 credits a month
Price: Pro at $1 per credit, with no seat fees. 14-day free trial
Website: greptile.com
4. Sourcery
Sourcery is an AI code reviewer for GitHub and GitLab that comments on pull requests and flags issues before merge. It is free for public repos and its Pro plan covers private repos.
Best for: Budget-friendly reviews for private repos
Free plan: Free forever for public repos (Open Source plan)
Price: Pro at $12 per developer a month billed annually, or $15 billed monthly
Website: sourcery.ai
AI code review tools free for open source
CodeRabbit and Sourcery review public repositories for free. DeepSource is free for open-source projects, and Korbit Max is free for all open-source repositories. Greptile's Starter plan is free for one active developer.
5. Qodo
Qodo is an AI code review and governance platform for teams shipping a lot of AI-written code. It works with GitHub, GitLab, Bitbucket and Azure DevOps.
Best for: Teams that want review standards enforced on every PR
Free plan: No permanent free tier. 14-day free trial, no credit card
Price: Pro Team plan at $30 with monthly billing
Website: qodo.ai
6. Graphite
Graphite is a code review platform for GitHub that adds AI reviews on every pull request to catch bugs and suggest fixes before merge. It also helps teams manage and ship pull requests faster.
Best for: GitHub teams that review many pull requests
Free plan: Hobby plan is free with limited AI reviews
Price: Starter at $20 per user a month billed annually. Unlimited AI reviews start on Team at $40 per user a month billed annually
Website: graphite.com
AI code review tools GitHub, GitLab and Bitbucket teams can use
GitHub Copilot and Graphite are built around GitHub. CodeRabbit and Qodo also support Azure DevOps. Greptile, Codacy and Korbit work with GitHub, GitLab and Bitbucket, while Sourcery covers GitHub and GitLab.
7. Codacy
Codacy checks code quality and security, and its Team plan adds an AI Reviewer and merge gates for pull requests. It supports GitHub, GitLab and Bitbucket.
Best for: Teams that want quality and security checks in one place
Free plan: Developer plan free forever. Team plan free for open-source projects
Price: Team from $18 per developer a month billed yearly, or $21 billed monthly. 14-day free trial
Website: codacy.com
8. DeepSource
DeepSource automates code reviews so you can ship to production faster with confidence. It is free for open-source projects, which makes it a good fit for public repos.
Best for: Open-source maintainers and growing teams
Free plan: Free for open-source projects
Price: Team at $24 per user a month billed yearly. 14-day free trial, no credit card
Website: deepsource.com
9. Korbit
Korbit gives real-time, actionable feedback in every pull request. It works in GitHub, GitLab and Bitbucket, and every plan starts with a 14-day free trial.
Best for: Teams on GitLab or Bitbucket watching cost
Free plan: Korbit Max is free for all open-source repositories
Price: Korbit Pro at $12 per user a month billed annually, or $15 billed monthly
Website: korbit.ai
Final verdict
Pick CodeRabbit if you want reviews on every pull request on any Git host. Stay with GitHub Copilot if your team already pays for it, and try Sourcery or Korbit for a low-cost dedicated reviewer. Start a free trial on two tools and compare their comments on the same pull request.
