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🔥 Reverse Engineer Almost Any App with AI! I Tested the Viral Repo Everyone's Talking About

This 200K-star GitHub repo lets AI reverse-engineer apps & rebuild their features without source code. Inspect websites, applications, and even compiled software in minutes!?

Author

Robin Do
October 15, 2026

TL;DR

REA (Reverse Engineer Anything) helps AI agents rebuild existing software more accurately using evidence from reverse engineering tools. You can clone app features in minutes, but cloning an entire business is a different challenge.

REA connects Claude Code and other AI agents to tools like Ghidra, Hopper, and Chrome DevTools. These tools inspect how existing apps work and help agents recreate their features.

In testing, REA rebuilt Apple's Preview app more accurately than regular Claude Code, although Claude finished faster. A second test recreated Wispr Flow with local transcription, history, and keyboard shortcuts. This guide covers REA's setup, results, and practical limitations.

Key points

  • REA gained 200,000+ GitHub stars within a week.

  • Avoid assuming cloned commercial software is legal to resell.

Introduction

REA (Reverse Engineer Anything) was created back in April 2026, then caught fire in early October, racing past 200,000+ GitHub stars in roughly a week.

reverse-engineering-tools

Someone rebuilt an Apple TV remote app in 45 minutes, while another developer recreated Adobe-style Photoshop and Premiere apps in Rust.

Matthew Berman declared “software is done.”

Replit CEO Amjad Masad even predicted that “pretty much all software will soon be open source.”

Sounds crazy, right? But if AI can reverse engineer almost any app, could you really clone an entire software business in minutes?

I tested REA against regular Claude Code by rebuilding Apple's Preview app, then tried cloning Wispr Flow, a popular voice-to-text tool.

In this guide, I'll show you how REA's reverse engineering tools work, what happened in both tests, and how much of this viral hype actually holds up. You'll also find out if REA is worth adding to your AI coding workflow.

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