The PR Review Canvas – a free interactive checklist for better code reviews

Code review is one of the most valuable activities in software development — but also one of the most inconsistent.

I've seen teams where every review is a tense negotiation, and others where "LGTM" is the default response to every PR. Both extremes are problematic.

After years of reviewing PRs and building tools to automate parts of the process, I realised that what most teams lack is a shared, structured mental model of what a good review actually covers.

So I built the PR Review Canvas — a free, open‑source kit that makes the reviewer's mental model explicit.

🎯 What's inside

📋 51‑item interactive checklist

A live web tool with a "Review Readiness" gauge, collapsible categories, dark/light mode, and progress saved in your browser. No install, no account, no tracking.

👉 Try it live

📝 PR description templates

• Basic template for everyday changes.
• Advanced template for complex, high‑risk PRs (with risk/rollback tables).

📖 Step‑by‑step guides

• For first‑time reviewers — how to not feel overwhelmed.
• For experienced reviewers — techniques for reviewing fast at scale.
• How to give constructive feedback (with actual phrases to use and retire).
• How to receive feedback without taking it personally.

📚 Annotated examples

• A well‑written PR — annotated to show why it works.
• A poorly‑written PR — annotated to show how to fix it.
• A full review transcript — comment by comment, with reasoning.

🧠 Code review anti‑patterns

A reference list of the recurring ways review goes wrong — on both sides of the diff.

🔗 Ready‑to‑paste templates

Import the checklist into Notion or Obsidian in one click.

🚀 Why a checklist?

A checklist isn't bureaucracy — it's a substitute for the senior engineer who isn't always available to stand over your shoulder.

The categories in this kit map to the actual sequence an experienced reviewer's brain runs through:

1. Context & Purpose
2. Architecture & Design
3. Code Quality
4. Testing
5. Performance & Security
6. Documentation
7. Standards Compliance
8. Final Considerations

Each item includes a "why" — so you're not just ticking boxes, you're understanding the reasoning behind each check.

🎨 Try it live — right now

You don't need to install anything. The interactive checklist is hosted on GitHub Pages:

👉 projekta2.github.io/pr-review-canvas

Open it, check items off as you review, and export your notes when you're done. Your progress is saved locally in your browser.

📦 The repo

Everything is MIT licensed , so you can fork it, adapt it, and use it with your team:

👉 github.com/projekta2/pr-review-canvas

Contributions are welcome — new checklist items, sharper feedback phrasing, translated versions, or a template for a workflow this doesn't cover yet.

💡 From the same workshop

This kit grew out of the same review fatigue that led to building other developer tools. But this one is free, open, and standalone — you don't need anything else to use it.

If you review code regularly, I'd love to hear what's missing or what could be sharper. Drop a comment below, open an issue on GitHub, or send me a message.

Built with care by Alexandre Iglesias – Girona, Spain.