We made a chrome extension that adds 10x features to GitHub code review

What it does

Supercharge GitHub Pull Requests

Planar automatically moves high priority changes to the top of your PR. It also shows the PR conversation side by side with the code changes. You get a single inbox that shows you all the PRs that need your attention. Inside the PR, you can easily see the changes since your most recent review and also comment anywhere in the PR (even outside the changesets!). If you like chaining your work in multiple branches, we provide a native way to navigate these stacked PRs in GitHub. Celebrate big wins and keep reviews fun and timeless with a collection of GIFs. Integrating with Planar is a simple. Download the extension, sign in with your GitHub credentials, and enjoy all of our features directly…from useplanar.com

In the maker’s words, at launch

Big tech companies have internal tools that they use to make code review easier. Planar (YC W23) is a free chrome extension that adds these features to GitHub. Features include: - A new review page UX that uses AI to group together related changes in a large PR - An inbox that shows you which PRs need your review…

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  Planar2023 · useplanar.com · ▲191

  Supercharge GitHub Pull Requests

• CB
  Crocodile - Better code review for GitHub2022 · crocodile.dev · ▲144

  Hi HN! I've been working on a code review app for GitHub called Crocodile for about a year. I used to work at Microsoft where we used a tool called CodeFlow for reviewing code and I missed it after I left. I know many other ex-Microsoft engineers feel the same. Here are some of the distinguishing features of Crocodile that are inspired by CodeFlow: * Comments float above the code instead of being inline. Long discussions that are displayed inline make it really hard to review the code. * Comment on any text selection in the file, even a single character. * Comments don't get lost when code…

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  GitHub "Lines Viewed" extension to keep you sane reviewing long AI PRsFeb 2026 · chromewebstore.google.com · ▲40

  I was frustrated with how bad a signal of progress through a big PR "Files viewed" was, so I made a "Lines viewed" indicator to complement it. Designed to look like a stock Github UI element - even respects light/dark theme. Runs fully locally, no API calls. Splits insertions and deletions by default, but you can also merge them into a single "lines" figure in the settings.

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  Github Bookmark Extension2020 · chromewebstore.google.com · ▲74

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  PlannotatorApr 2026 · github.com · ▲97

  I started this in January as a hook for Claude Code's plan mode: when it finished planning, instead of approving a wall of text in the terminal, the plan opens in your browser and you could mark it up like a document. Your annotations go back into the agent session. It grew from there. There's now PR-style code review (git, jj, p4, GitHub/GitLab PRs) and annotation for markdown, URLs, and folders. Agents produce a lot of HTML now, so Plannotator renders those artifacts and lets you annotate them too. Nine harnesses are supported: Claude Code, Codex, Copilot CLI, Gemini, OpenCode, Kiro,…

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• BI
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  I'm a big fan of the BBC podcast In Our Time -- and (like most people) I've been playing with the OpenAI APIs. In Our Time has almost 1,000 episodes on everything from Cleopatra to the evolution of teeth to plasma physics, all still available, so it's my starting point to learn about most topics. But it's not well organised. So here are the episodes sorted by library code. It's fun to explore. Web scraping is usually pretty tedious, but I found that I could send the minimised HTML to GPT-3 and get (almost) perfect JSON back: the prompt includes the Typescript definition. At the same time I…

  AI · 2023 · genmon.github.io