RetDec

RetDec (Retargetable Decompiler) is an open-source framework for binary analysis and decompilation. It aims to automatically translate machine code back into a high-level representation, typically C-like code, to aid reverse engineering and vulnerability research. The project was originally developed by Avast Software and is now maintained by the RetDec project and an active community of contributors.

RetDec is designed to be retargetable and supports multiple architectures and file formats. It can analyze x86, x86-64, ARM, ARM64, MIPS, PowerPC, and AVR binaries, and works with common formats such as ELF, PE, and Mach-O, as well as firmware images and object files. The decompiler is composed of modules for disassembly, control-flow reconstruction, data-flow analysis, and decompilation to a C-like intermediate representation, from which readable source code is produced. In addition to decompilation, RetDec provides disassembly and an exploration interface for examining generated code, annotations, and relationships to the original binary. It can be used via a command-line tool, a web service, or integrated into other analysis pipelines through an API.

RetDec is distributed as an open-source project with the source code available on GitHub and organized under the RetDec project website at retdec.org. It is used by researchers, security analysts, and educators for malware analysis, firmware analysis, and reverse-engineering tasks. The project emphasizes automation and reproducibility, offering documentation, tutorials, and an active community to contribute improvements and new architectures.