Browser extension for GitHub pull requests

Stack Reviewer

Review stacked PRs in the right order, every time.

Stack Reviewer embeds a sidebar panel directly into GitHub pull requests, showing the full stack, highlighting the current PR, and keeping everything in sync as you review. Works with any stacking tool: Git Navigator, jj, spr, or your own workflow.

Download for Chrome Back to Git Navigator

The problem

GitHub buries stacked PRs in branch names and scattered links. Reviewers waste time piecing together the order instead of reviewing code. Stack Reviewer surfaces the full context in the sidebar so you always know where you are.

What you get

  • Clear ordering — see every PR in the stack and how they relate
  • Current PR highlighted — always know which one you're reviewing
  • No context switching — stays in the GitHub sidebar, not a separate tab
  • Private repo support — sign in with GitHub when needed

See it in action

The sidebar panel stays visible as you navigate the pull request.
Stack Reviewer sidebar on a GitHub pull request
Stack order visible at a glance in the pull request sidebar.
Stack Reviewer with the active pull request highlighted
Stack navigation panel stays visible while reviewing code.
GitHub pull request page with a conflicting stack change
Detects potential stack conflicts even when GitHub doesn't surface them.

How it works

Open any GitHub pull request. Stack Reviewer automatically detects the stack and displays it in the sidebar.

The panel highlights your current position, shows what comes before and after, and maintains a consistent order so you can review the stack sequentially.

For private repositories, sign in via the extension popup. If the stack has branches, Stack Reviewer picks a linear path to keep the review order clear.

Privacy & permissions

Stack Reviewer runs entirely in your browser. It calls the GitHub API directly to fetch stack data—no intermediate server, no data collection. Your code and review activity stay between you and GitHub.

Get started in seconds

Install the extension, open any stacked PR on GitHub, and the sidebar panel appears automatically. No configuration required.

Install from Chrome Web Store