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thinkrail

by JetBrains

ThinkRail is a desktop and browser-based coding environment built around the pi coding agent. It lets you run AI coding sessions in separate git worktrees, with an editor, terminals and project specs alongside.

Worth a lookEstablished, with a few things to check (listed below).

View on GitHubProject website

Stars
2.4k
Licence
Apache-2.0
Runs on
Your computer
Setup
Easy
Language
TypeScript
Age
111 days

What you can do with it

  • Run several AI coding sessions in parallel, each in its own git worktree and branch
  • Keep project specs in SPEC.md files so the agent remembers your intent between sessions
  • Review changes, leave comments, and open or merge GitHub pull requests from inside the app

Make money with it

A freelance developer could use it to deliver client software projects faster and take on more paid work.

An idea, not financial advice. Check the licence before charging for anything built on it.

Ways a business could use it

  • A freelance developer can run several client tasks in parallel on separate branches and spend less time on routine coding.
  • A small team can keep specs and reusable skills in the repository so the agent follows the same rules on every task.

Can you use it commercially?

Free to use, change and sell, including in paid products. Keep the copyright notice.

Not legal advice. Read the project's licence file before building a product on it.

Getting it running

Download the desktop installer for macOS, Windows or Linux from the releases page, or use the thinkrail command-line tool to open it in your browser.

Follow the official instructions in the project README.

Things to check

  • Needs an AI provider account or API key (such as JetBrains AI or another provider), which may cost money
  • Extension support is still planned, so some advertised features are not yet available
  • AI-written code needs careful human review

Who's talking about it

Checked 27 Oct 2026. Summary drafted by AI from the project's README.

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