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PR-Agent

Open-source AI reviewer that describes, reviews and suggests improvements on pull requests

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What PR-Agent does

  • Open-source AI reviewer that describes, reviews and suggests improvements on pull requests
  • Runs as a GitHub Action, CLI or self-hosted app with your own LLM key
  • Supports GitHub, GitLab, Bitbucket and Azure DevOps

PR-Agent — straight answers

What is PR-Agent?

PR-Agent is listed under AI Code Review, in the Code & Development category on Flocci AI Tools. Open-source AI reviewer that describes, reviews and suggests improvements on pull requests. It is free, with no paid plan attached, and it lives at github.com.

Is PR-Agent free?

PR-Agent is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 397 entries on Flocci AI Tools with no upgrade path built in.

Can I use PR-Agent in a browser, or is there an app?

PR-Agent needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on self-hosting and the command line.

What can PR-Agent do?

PR-Agent does 3 things the catalog singles out: Open-source ai reviewer that describes, reviews and suggests improvements on pull requests; runs as a github action, cli or self-hosted app with your own llm key; supports github, gitlab, bitbucket and azure devops.

What is the best free alternative to PR-Agent?

CodeRabbit is the closest free alternative: it sits in the same AI Code Review sub-category and is free tier + paid plans. Greptile and Sourcery also start free. The full list is on the alternatives page.

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PR-Agent alternatives

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CodeRabbit

AI Code Review
freemium
  • Agentic AI reviews on PRs and CLI with automated one-click fix suggestions
  • Multi-repo analysis, SAST/linter integration, and MCP connections
  • Usage-based Slack review agent priced per agent-minute
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Greptile

AI Code Review
freemium
  • Free Starter tier with unlimited repositories for individual developers
  • Credit-based review pricing (1 credit = 1 standard review)
  • Deep codebase-context reviews (TREX) beyond diff-only analysis
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Graphite Diamond

AI Code Review
  • AI reviewer built into Graphite's stacked-PR workflow, not a bolt-on bot
  • Trained on merge-queue and review-history signal specific to fast-moving teams
  • Pairs with Graphite's PR stacking/merge-queue tooling for high-velocity teams
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Qodo

AI Code Review
trial
  • Context-aware agentic review across IDE, PR, CLI and Git workflows in one platform
  • Credit-pooled team pricing instead of rigid per-seat licensing
  • Originated as CodiumAI test-generation tool, now spans review + test generation
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Cubic

AI Code Review
  • Paid plans only; there is no free plan.
  • Runs thousands of background agents nightly to scan the whole codebase, not just diffs
  • Learns team standards from senior devs' past review comments
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Sourcery

AI Code Review
freemium
  • AI pull request reviews for GitHub and GitLab with summaries, bug findings and one-click fixes
  • Free for open-source projects
  • Does not keep code after review or train on it
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Head-to-head comparisons

PR-Agent vs CodeRabbitPR-Agent vs GreptilePR-Agent vs Graphite DiamondPR-Agent vs QodoPR-Agent vs CubicPR-Agent vs Sourcery