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Add-ons for AI coding tools

REA: Reverse Engineer Anything

Lets an AI assistant look inside an existing app to explain how one of its features works.

Fast-rising

What it does

"Reverse engineering" means working out how a piece of software works by examining the finished product, without access to its original code. Think of taking apart a clock to see how the gears fit together.

REA connects an AI coding assistant to the professional tools used for this. You might ask, "How does search work in this notes app?" The AI inspects the app on your own computer, explains what it found, shows the evidence, and can help build a similar feature for your own project.

It works on many kinds of software, including desktop apps, websites, Android apps and older programs. Its makers say it's meant for lawful uses such as research, education, making software work together, and studying software you own or have permission to examine.

Who it's for

Software developers, security researchers and curious engineers who want to understand how existing software works.

Can I use it without coding?

Developers only. Needs an AI coding tool and some technical setup. Deeper analysis also needs a separate specialist tool such as Ghidra (free) or Hopper. New to this? Start here.

Can I run it?

Cost
FreeNothing to pay or sign up for.
Runs on
Mac, Windows, Linux
Computer
An ordinary computer is fine
Privacy
Runs on your own device: your data stays with you
API key
Not needed

Try it

  1. Install Node.js, then run REA's setup tool and choose which AI coding assistants to connect.
  2. Review and approve the proposed changes, then restart your AI assistant.
  3. Ask your assistant to explain how a feature in an app works, and show the evidence.
Official download page

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

  • Only download from the official GitHub page or the official download page above. Copies with similar names exist for many popular projects.
  • License (MIT): Very permissive: free to use, change and share, including for business.
  • More on staying safe

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