: https://github.com/unluac/unluac Language : Java Supported versions : Lua 5.0–5.4 (best for 5.1, 5.2, 5.3)
java -jar unluac20221005.jar input.luac > output.lua
Download the latest unluac.jar from its official repository. decompile luac
A compiled LUAC file is a binary stream divided into specific sections:
Open your terminal (CMD on Windows or Terminal on macOS/Linux) and navigate to that folder. Use this command: java -jar unluac.jar target.luac > output.lua Use code with caution. Copied to clipboard target.luac : Your compiled file. > output.lua : https://github
# Download latest unluac.jar wget https://github.com/HansWessels/unluac/releases/download/v2022.10.5/unluac20221005.jar
Each major Lua version introduces changes to the bytecode format, opcodes, and language features that the decompiler must manage. Decompilers achieve this with a compatibility layer that translates version-specific opcodes into a common intermediate representation (IR). The table below highlights some critical differences: Copied to clipboard target
While this compilation protects source code from casual viewing and speeds up loading times, developers and analysts often need to revert .luac back to readable .lua . This process is called .
: The decompiler lifts the bytecode into an internal, platform-independent representation. This step often involves converting the code into Static Single Assignment (SSA) form , which helps the decompiler track how values move between instructions and simplifies data-flow analysis.
If you are working on a specific file right now, what did this LUAC file come from? Sharing the Lua version you found in the hex header will also help me recommend the exact tool or decryption step you need next. Share public link
If you are analyzing a compiled C binary that embeds Lua scripts internally, standalone decompilers won't work. Open-source platforms like or commercial tools like IDA Pro feature community plugins specifically designed to detect, extract, and decompile embedded Lua states from memory or executable sections. Step-by-Step Guide: How to Decompile a LUAC File