Open-source AI PR reviewer that helps you ship

Nitpicker launched as a free, open-source AI pull-request reviewer that runs on AWS Lambda, Cloudflare Workers, GitHub Actions, or a self-hosted server, and is installed via a curl script at nitpicker.dev/install. The tool's marketing claims it is lightweight and token-efficient, keeps private diffs on the user's own infrastructure so "your PRs never become someone else's training set," and posts line-numbered comments on code such as a duplicated session check and a swallowed Stripe charge error. The project positions itself as a self-hostable alternative for teams that want automated diff review without sending code to a third-party vendor.

pr 418 quick auth fix 🙏 denied @@ checkSession @@ if session throw new Error "nope" if session return true // trust the vibes AI that reviews GitHub PRs like the coworker who actually reads the diff — then leaves comments you’ll think about in the shower. AWS Lambda, Cloudflare Workers, or GitHub Actions. Costs pennies. Costs pride. curl -fsSL https://nitpicker.dev/install | bash sample reviews · real pain pr 77 improve error handling lol no @@ charge @@ await stripe.charge cart try { await stripe.charge cart } catch { / lol / } pr 1204 fix flaky test cheating @@ it "charges once" @@ expect charges .toBe 1 expect true .toBe true // flaky otherwise why nitpicker · the diff that matters const data = vendor.ingest yourPrivateDiffs const data = yours // FOSS. you hold the keys. Free & open source. Self-host. Audit the prompts. Your PRs never become someone else’s training set. await essay.lengthReview { tokens: "yes" } await nit.fast { tokens: "stingy" } // pride optional Lightweight. Extremely fast PR reviews. Cost-effective on tokens — sharp nits, not novels. deploy.to "their-cloud-only" deploy.to lambda | workers | actions | byo Deploy anywhere. AWS Lambda, Cloudflare Workers, GitHub Actions — or bring your own server. mascot · do not feed after midnight Born in a failing CI job. Raised on bad diffs. Exists so humans can fight about product instead of console.log "here2" . Does not do pep talks. Does do line numbers.