wasm2c

Convert WebAssembly to portable C code

TLDR

Convert to C

$ wasm2c [input.wasm] -o [output.c]

Generate header

$ wasm2c [input.wasm] -o [output.c] --header=[output.h]

Module name

$ wasm2c [input.wasm] -o [output.c] --module-name=[mymod]

SYNOPSIS

wasm2c [-o output] [--header file] [options] input

wasm2c is a tool from the WABT (WebAssembly Binary Toolkit) that translates WebAssembly binary modules into portable C source code. The generated C code can be compiled with any standard C compiler, enabling WebAssembly modules to run natively without a WebAssembly runtime.The tool produces both a C source file containing the translated module logic and an optional header file with function declarations and type definitions. A custom module name can be specified to control the naming of generated symbols, which is useful when linking multiple translated modules together.This approach is useful for embedding WebAssembly functionality in C/C++ projects, running WebAssembly on platforms without a runtime, or analyzing module behavior through the generated source code.