You searched a paid product
IDA Pro does 4 jobs: disassembly, decompilation, debugging, AI-assisted analysis. Most projects replace one or two of them, so pick the job you actually need.
Open-source alternatives to IDA Pro that run locally, allow commercial use and need no paid API include Ghidra (disassembly, decompilation and debugging; Apache-2.0; runs on CPU). None of the 4 projects we track covers all 4 IDA Pro jobs, so most people combine two or more.
Free and open-source graphical reverse engineering platform built on rizin, with a Ghidra decompiler plugin and Python or C++ plugins.
NSA's software reverse engineering framework with disassembly, decompilation, graphing, scripting and a debugger.
Command-line reverse engineering framework to analyse, emulate, debug, patch and disassemble binaries across many architectures.
MCP server and CLI that lets AI coding agents inspect binaries, JavaScript/Electron apps, .NET assemblies and websites, with evidence.
No project meets all of your requirements. The list below shows what you'd need to relax.
We hid them because something is missing, unknown or conflicting. Here's what.
Yes. Ghidra, radare2, Cutter and REA (Reverse Engineer Anything) are free to download and run on your own computer without paid API keys. Each covers only part of what IDA Pro does, so check which job you need.
Yes, with Ghidra (Apache-2.0), radare2 (Custom licence) and Cutter (GPL-3.0). Check the hardware notes and licence conditions on each page before you start.
Yes, with Ghidra (Apache-2.0), radare2 (Custom licence) and Cutter (GPL-3.0). Check the hardware notes and licence conditions on each page before you start.
Confirmed: Ghidra and REA (Reverse Engineer Anything). With conditions: Cutter and radare2. This is not legal advice; read each licence.
Not as of 2026-10-15. Disassembly, decompilation, debugging and AI-assisted analysis are covered by different projects.