We are happy to announce the beta release of the Lua Decompiler package. It reconstructs readable Lua source code from compiled Lua bytecode (.luac) files, covering all major Lua versions from 5.0 through 5.4. This package requires the installation of the LUAC Format package.
Compiled Lua bytecode is common across game engines, embedded firmware, IoT devices, and malware payloads. Disassembly alone is often enough for a rough understanding of a function, but reading dozens of instructions per line does not scale when a script spans thousands of opcodes. A decompiler bridges that gap: it turns register-level bytecode back into control flow a human can read, making review, patch development, and malware triage dramatically faster.
This is a beta release. The core reconstruction pipeline is stable and validated against a broad sample set across all supported Lua versions, but complex control flow patterns and heavily optimized bytecode may still produce suboptimal output. Feedback is welcome.