Free and open first
Best AI Code Review Tools in 2026
AI code review tools help teams examine code changes as part of a development workflow. Compare code host support and review triggers with custom review rules, fix suggestions, and security analysis to see which capabilities align with your process. Deployment model and SARIF export offer further details about setup and review outputs; free-plan availability and paid-from pricing add cost context. CodeRabbit, ThinkReview, and AI Code Reviewer are among the tools shown. Consider where reviews should run and which checks and outputs your team needs, then weigh those requirements against the listed features.
- 48 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
AI Code Reviewer
Free plan Open source LinuxSelf-hostedAI Code Reviewer offers configurable automated review comments for GitHub, with several model choices and self-hosting options.
- 2
Bito
Free plan ExtensionLinuxMac+3Bito combines IDE-based reviews with an architecture knowledge graph and workflow integrations. Review the included line allowance and fair usage limits when choosing a plan.
- 3
CodeRabbit
Free plan APIExtensionLinux+4CodeRabbit combines pull-request reviews with triage, diff explanations, and security scanning across several repository hosts.
- 4
Cubic
Free plan APILinuxMac+2Cubic combines pull request reviews, codebase scanning, and team-specific review context for GitHub repositories.
- 5
DeepSource
Free plan APILinuxMac+3DeepSource combines pull request review with security scans and code-coverage thresholds. Compare the free tier’s monthly allowances with your review volume, and note the annual billing on Team.
- 6
- 7
CodePress Review
Free plan APILinuxSelf-hostedCodePress Review combines configurable, repository-aware reviews with formal GitHub review submissions and optional pull request descriptions.
- 8
Greptile
Free plan APIExtensionLinux+3Greptile combines repository-aware pull-request review with a local CLI and security analysis. The free plan has a one-developer limit, while Pro starts at $30/seat/month.
- 9
Codacy
Free plan ExtensionWebCodacy brings code review, security scanning, and coding standards into a cloud platform for engineering teams.
- 10
CodeKang
Free plan Self-hostedWebChoose CodeKang if your team wants pull request analysis with proposed fixes that a person approves before they proceed.
- 11
Gitar
Free plan APISelf-hostedWebGitar combines pull request review, CI diagnosis and rule-governed automated fixes.
- 12
LiveReview
Free plan APIExtensionLinux+4LiveReview offers configurable automated code reviews, multiple code-host integrations, and reporting, with free Individual and paid Premium plans.
- 13
Mesrai
Free plan LinuxMacSelf-hosted+2Mesrai combines repository-wide analysis, configurable rules, integrations, and engineering metrics across common development workflows.
- 14
Octopus
Free plan APIExtensionLinux+4Choose Octopus if your team wants code-aware pull request reviews across its supported Git providers, with configurable standards and a choice of hosted or self-hosted use.
- 15
Korbit AI
Free plan Self-hostedWebKorbit AI combines automated checks, AI explanations, security analysis, and team reporting for supported code hosts.
- 16
Merlin AI Code Review
Free plan LinuxSelf-hostedMerlin offers self-hosted pull request review with configurable AI backends and security scanning. The software is free, but users arrange their own AI access and cover provider token charges.
- 17
Revue
Free plan APILinuxWeb+1Revue offers review analysis, configurable rules, and analytics with plans tied to monthly review volume. Teams should consider the Free plan’s lower ongoing allowance when choosing a tier.
- 18
Sourcery
Free plan APIExtensionLinux+4Sourcery combines pull-request reviews with security scanning across several code hosts and editors.
- 19
Ito
Free plan WebChoose Ito if your team wants automated behavioral testing and QA reports connected to GitHub pull requests.
- 20
Mira
Free plan Self-hostedWebMira offers contextual reviews, security checks, and feedback-derived rules for teams prepared to self-host. Confirm that your code host is supported and account for direct model-provider costs.
- 21
PR-Agent
Free plan APISelf-hostedPR-Agent combines pull-request review, improvement suggestions, and question answering across several git platforms.
- 22
Robin Review
Free plan APISelf-hostedWebRobin Review combines GitHub pull request feedback with configurable LLM endpoints and has no review quota on its free plan.
- 23
ThinkReview
Free plan APIExtensionLinux+3ThinkReview combines code-review feedback, customizable rules, and user-controlled posting across several code hosts.
- 24
PR Quorum
Free plan APIWebPR Quorum offers customizable AI review panels and repository-level rules for GitHub pull requests. Its reviews are advisory, and the API remains in preview.
- 25
Tenki Code Reviewer
Free plan LinuxMacWebTenki Code Reviewer offers two review triggers and controls for tailoring feedback to a repository and team. Keep the per-review charge after included credits in mind when estimating ongoing use.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price