Best AI Code Review Tools 2026

A self-hosted or web reviewer for AI-generated pull requests with risk chapters, checklists and confidence scores.

Merlin reviews pull request diffs locally with configurable AI and posts inline comments without third-party SaaS.

niri suits Linux users who want a Wayland compositor with column-based window layouts and dynamic workspaces.

An open-source GitHub Action that uses your configured LLM to comment on changed lines.

Open-source GitHub Action that uses repository context to post verified, line-level LLM review comments.

Open-source reviewer that uses repository context for pull and merge request comments, walkthroughs and security checks.

A self-hosted GitHub pull-request bot that posts findings with model and hosting provenance.

A self-hosted review agent that uses specialist sub-agents and posts severity-grouped findings on Git hosts.

A cloud GitHub reviewer with custom rules and manual or automatic reviews; its free plan covers one repository.

A cloud web code review service with automatic reviews, custom rules and fix suggestions.

A hybrid web service for code reviews with security checks, custom rules and fix suggestions.