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Code Review Checklist Generator

Generate a focused review checklist tailored to your language and PR type. Copy as Markdown straight into your pull request — everything runs in your browser, no signup, no data sent anywhere.

✓ 9 languages ✓ 6 PR types ✓ Markdown export ✓ 100% client-side
Language
Generic TypeScript JavaScript Python Go Rust Java C# SQL
PR Type
Feature Bugfix Refactor Security Performance Dependency
Depth
Quick Standard Deep
Include
Testing Docs Accessibility i18n
0 items
Pick a language and PR type above — the checklist generates instantly.
0 of 0 checked

What this tool does

Most teams use a single generic code-review checklist for every PR. That's a hidden cost: a security PR has different review priorities than a refactor; a Go PR has different idioms to check than a TypeScript PR; a feature PR needs feature-flag and telemetry checks that a bugfix doesn't. A generic 10-item checklist forces reviewers to either skip half the items (because they don't apply) or skim every PR identically (so the items that do matter get less attention).

This generator outputs a checklist tailored to two axes: the language of the change and the type of change. It also lets you scope by depth (quick / standard / deep) and toggle optional dimensions (testing, docs, accessibility, internationalization). Output as Markdown that pastes directly into a GitHub, GitLab, or Bitbucket pull request — the checkboxes render as interactive checkboxes inside the PR.

How to use the output

  1. Paste into the PR description. The first reviewer or the author ticks items off as they verify them. Items left unchecked are visible to the next reviewer.
  2. Or paste as a review comment. Same effect, but the checklist lives with the review rather than the PR description.
  3. Or save as .github/pull_request_template.md in the repo to apply the checklist to every PR automatically. Use this for the high-traffic file types in your repo — the checklist is most valuable when it shows up by default.

The five things every code review should catch

Whatever language and PR type you pick, every good review confirms these five things at minimum. The generator includes them in the baseline for every checklist:

The tailored items the tool adds (TypeScript narrowing, Python type hints, Go context plumbing, SQL index review, etc.) sit on top of those five, not in place of them.

If you're rebuilding your review process this quarter, also see our companion guide to designing technical screens and our other developer tools — including a regex tester, cron builder, and git command finder.

Frequently asked questions

What is a code review checklist?+
A code review checklist is a structured list of items a reviewer should verify before approving a pull request. Good checklists are tailored to the language and the type of change — a security PR has different review priorities than a refactor — and they reduce the chance that obvious mistakes ship to production. They also help less experienced reviewers learn the team's bar without having to memorize tribal knowledge.
Should I use the same checklist for every PR?+
No. The right checklist depends on the type of change. A feature PR needs feature flags, telemetry, and rollout safety items. A bugfix needs a reproducible test of the bug and verification it's actually fixed. A refactor needs a "no behavior change" check. A security PR needs threat modeling and explicit auth/authz review. A performance PR needs before/after measurements. Generic checklists miss these, which is why tailored generation matters.
How do I add this checklist to my GitHub PR?+
Click "Copy as Markdown" and paste it into the PR description or as a review comment. The Markdown checkboxes will render as interactive checkboxes in GitHub, GitLab, Bitbucket, and most modern PR tools. You can also save it as a .github/pull_request_template.md to apply it to every PR automatically.
How long should a code review take?+
Reviews under 400 lines of code typically take 30–60 minutes when done properly. Anything beyond 500 lines, the reviewer's attention drops sharply and bugs slip through — break those PRs into smaller commits or stack PRs. The strongest engineering teams enforce a soft limit of 200–400 LOC per PR for this reason. A focused 30-minute review with a good checklist catches more issues than a tired 2-hour review of a 1500-line PR.
Is this tool free? Do you store my data?+
Yes, 100% free. No signup, no email, no paywall. Everything runs in your browser — your selections never leave your machine. There's nothing for us to store.

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