Merlin AI Code Review – Self-hosted AI code review that never leaks your code

Summary: Merlin AI Code Review is an open-source, self-hosted AI tool for automated code review that runs entirely within your CI pipeline without sending data externally. It supports multiple AI backends and integrates with GitHub, GitLab, Bitbucket, Azure DevOps, and Gitea, ensuring code privacy and compliance.

What it does

Merlin performs AI-driven code reviews using six configurable AI backends and offers 19 slash commands for tasks like security and documentation. It indexes your codebase for context-aware analysis and operates as an autonomous agent to complete review goals.

Who it's for

It is designed for development teams requiring secure, private code review workflows, especially in regulated industries like fintech, healthcare, and defense.

Why it matters

Merlin eliminates the need to expose source code to third-party SaaS, maintaining data privacy by running fully on-premises within existing CI pipelines.