How to Use CodeRabbit in 2026: Step-by-Step Guide
CodeRabbit is an AI-powered code review tool that automatically reviews every pull request on GitHub or GitLab. It reads the full PR context — changed code, diffs, commit messages, and linked issues — then provides a structured review covering bugs, security issues, performance problems, and style violations. Used by 50,000+ engineering teams to reduce review bottlenecks.
CodeRabbit addresses one of the most persistent bottlenecks in software development: getting timely, thorough code review. Rather than replacing human reviewers, it handles the high-frequency, mechanical aspects of review so senior engineers can focus on architecture and design judgment.
How CodeRabbit Works
When a developer opens a pull request, CodeRabbit:
- Reads the full diff and changed files
- Analyzes the PR description, linked issues, and commit messages for context
- Walks the entire codebase to understand how the changes fit the broader system
- Posts a structured review within minutes
The review is organized in sections:
- Summary — plain-language explanation of what the PR does
- Walkthrough — file-by-file breakdown of changes
- Findings — bugs, security issues, performance concerns, logic errors
- Nitpicks — style, naming, documentation suggestions (clearly marked as low-priority)
Review Quality
CodeRabbit differs from simpler linting tools by understanding intent:
- Catches off-by-one errors and incorrect boundary conditions
- Identifies missing null checks, error handling gaps, and exception paths not covered
- Spots SQL injection, XSS, and common security patterns
- Flags N+1 query problems and inefficient loop patterns
- Checks that unit tests actually test what the PR description claims
GitHub and GitLab Integration
Install via GitHub/GitLab app. CodeRabbit posts review comments inline on the PR, exactly like a human reviewer would. It responds to follow-up questions: if a reviewer asks "why is this a problem?", CodeRabbit explains the issue in more depth.
Conversation-aware — CodeRabbit tracks the review conversation. If a developer disagrees with a finding and explains their reasoning, CodeRabbit acknowledges the context and adjusts.
Configuration
Teams configure CodeRabbit via a .coderabbit.yaml file:
- Exclude files/directories from review
- Set language and style guide preferences
- Configure severity thresholds (what to post vs. suppress)
- Define custom review patterns specific to your codebase
Scale
- 50,000+ engineering teams
- Reviews in all major programming languages
- Supports GitHub, GitLab, and Azure DevOps
- SOC 2 Type II compliant
Pricing
Free for open-source repositories. Pro plan at $12/seat/month for private repos.
What You'll Need
- A CodeRabbit account (free to create)
- A modern web browser or the CodeRabbit app
- Payment method for paid features
Getting Started
Create Your Account
Visit https://coderabbit.ai and sign up for a freemium account. You'll need an email address to register. A free tier is available — you can upgrade later for more features.
Start Your First Conversation
Once logged in, you'll see the main chat interface. Type a question or task in the input box and press Enter. CodeRabbit supports code-review, pull-request-analysis, bug-detection, security-scanning, github-integration, gitlab-integration, automated-review, context-aware-analysis — start with a simple text prompt to get familiar.
Pro Tips
- Be specific: The more context you provide, the better the response. Instead of "write an email," try "write a professional follow-up email to a client who hasn't responded in two weeks."
- Iterate: If you don't get what you need, ask for clarification or refinement: "Make it shorter" or "Use a more formal tone."
- Use examples: Show CodeRabbit what format you want by including an example in your prompt.
- Save useful conversations: Most platforms let you name and revisit conversations — organize by project or topic.
Common Use Cases
Programming & Code
AI assistants focused on writing, debugging, and explaining code across programming languages.
Browse Programming & Code chatbots →Troubleshooting
- Responses seem generic or unhelpful
- Add more context to your prompt. Specify the audience, tone, length, and format you need. Try starting over with a clearer description of your goal.
- The tool isn't responding or is slow
- AI chatbots can experience high traffic. Refresh the page and try again. Check the service's status page if issues persist.
- Output is too long or too short
- Explicitly specify the length: "in 100 words," "as a brief summary," or "in detail with examples."
Get Weekly Chatbot Tips
Not sure which AI tool is right for you? Our newsletter covers reviews, tutorials, and comparisons weekly.
Frequently Asked Questions
- Is CodeRabbit free to use?
- CodeRabbit has a free tier. Paid plans start from $12/mo.
- Do I need an account to use CodeRabbit?
- Yes, you need to create an account to use CodeRabbit.
- What can I use CodeRabbit for?
- CodeRabbit is an AI-powered code review tool that automatically reviews every pull request on GitHub or GitLab. It reads the full PR context — changed code, diffs, commit messages, and linked issues — then provides a structured review covering bugs, security issues, performance problems, and style violations. Used by 50,000+ engineering teams to reduce review bottlenecks.
Related Guides
Know a tool we're missing? Submit it free →