The ASM library is a project of the OW2 Consortium. It provides a simple API for decomposing, modifying, and recomposing binary Java classes (i.e. bytecode). The project was originally conceived and developed by Eric Bruneton. ASM is Java-centric at present, and does not currently have a backend that exposes other bytecode implementations (such as .NET bytecode, Python bytecode, etc.). The ASM name does not mean anything: it is just a reference to the asm keyword of C, which allows some functions to be implemented in assembly language.