unluac

unluac is a Java-based decompiler designed to convert Lua bytecode versions 5.0 through 5.4 back into human-readable Lua source code, enabling analysis and debugging of Lua applications. Notable features include multi-version support, a command-line interface for ease of use, and capabilities to handle custom opcode and type mapping for modified Lua implementations, such as xLua. The tool requires bytecode compiled with debug information and is cross-platform compatible, making it suitable for various development environments.