
Greptile
AI code reviewer that indexes your whole codebase to catch bugs before merge.
Best for
Teams that want whole-repo context in reviews plus an agent that can also write and run tests.
Skip if
You review in a language outside Greptile's high-accuracy list, since coverage varies by language.
What is Greptile?
Greptile is an AI-powered code review tool that builds a graph index of an entire codebase, mapping files, functions and dependencies, then deploys multiple review agents in parallel to check pull requests for bugs, security issues and style violations. It continuously learns from a team's own PR comments to apply house coding standards automatically. Greptile also includes TREX, a testing agent that autonomously writes and runs tests for a given PR, and supports custom rules written in plain English. It integrates with GitHub and GitLab, plugs into coding agents like Claude Code, Cursor, Codex and Devin, and offers a self-hosted, SOC 2-compliant option for enterprise security requirements.
SpecificationsAI-estimated
Key Features of Greptile
Use Cases for Greptile
Context-rich PR review
Review changes with awareness of how a function is used across the entire indexed codebase, not just the diff.
Automated test generation
Use TREX to have an agent write and run tests against a pull request before merge.
Custom standards enforcement
Define house coding rules in plain English and have every PR checked against them automatically.
Coding agent output review
Validate code generated by Claude Code, Cursor or Devin before it reaches production.
Pros & Cons of Greptile
Pros
- Free Starter tier covers a solo developer with unlimited repositories
- Whole-codebase graph indexing gives reviews more context than diff-only tools
- TREX can generate and run tests automatically instead of just flagging missing coverage
- Plain-English custom rules are easier to set up than a rules DSL
Cons
- Credit-based Pro pricing means heavy TREX usage (3 credits per review) can burn through the allotment fast
- Full language accuracy is strongest on a defined set of languages, with reduced accuracy on others
- Self-hosted deployment likely requires an Enterprise conversation not detailed publicly
Frequently Asked Questions
Is Greptile free to try?
Yes, the Starter plan is free for one developer with unlimited repositories and 50 monthly credits.
What is TREX?
TREX is Greptile's testing agent that autonomously writes and runs tests for a pull request, at 3 credits per review.
Which version control systems does Greptile support?
Greptile supports GitHub and GitLab.
Can Greptile be self-hosted?
Yes, a self-hosted, SOC 2-compliant deployment option is available for enterprise security requirements.
Pricing Overview
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