Best Code Review Tools

CodeRabbit is the most popular AI code review tool, providing line-by-line review on every pull request. It generates context-aware summaries, catches bugs, suggests improvements, and learns from team patterns. Integrates with GitHub, GitLab, and Azure DevOps. Widely adopted by open-source projects and engineering teams as the standard for AI-assisted code review.

Qodo (formerly CodiumAI) is an AI code quality platform recognized as a Visionary in the 2025 Gartner Magic Quadrant for AI Code Assistants. It generates meaningful tests, reviews pull requests, and provides code integrity analysis. Qodo Merge reviews PRs with auto-generated descriptions, code suggestions, and test coverage analysis.

Graphite is a modern code review platform built around stacked pull requests and AI-powered review. It streamlines the PR workflow with automatic stacking, merge queues, and AI-generated summaries and suggestions. Popular with fast-moving engineering teams who want to ship code faster while maintaining quality.

Ellipsis is an AI code review bot that reviews every pull request like a senior engineer. It catches bugs, identifies security issues, and enforces coding standards automatically. Ellipsis also generates fixes as suggestions that can be committed directly from the PR, reducing review turnaround time.

Bito is an AI coding assistant with strong code review capabilities. It provides AI-powered PR reviews, code explanations, and performance analysis. Bito supports 100+ languages and integrates with popular IDEs and Git platforms, focusing on enterprise teams that need secure, on-premise AI code review.

Sourcery is an AI code reviewer that provides instant feedback on every pull request. It reviews for code quality, identifies anti-patterns, and suggests refactoring improvements. Sourcery focuses on clean code principles and can be configured with custom rules to match team standards.