wasm2c

Convert a file to a C source file and header and display it to the console

$ wasm2c [file.wasm]

$ wasm2c [file.wasm] [[-o|--output]] [file.c]

wasm2c [options]

-h|--help
    Display available options.

-o
    Specify the output C file name.

--mvp
    Only emit code that uses MVP features, even when the input file uses proposals.

--validate
    Validate the wasm module before translating.

--memory-base=
    Set the memory base address.

--table-base=
    Set the table base address.

--debug-names
    Use debug names from the wasm module in the generated C code.

wasm2c is a command-line tool that translates WebAssembly (WASM) bytecode into equivalent C source code. This allows you to compile and run WASM modules on platforms where a WASM runtime might not be readily available. The generated C code can be compiled using a standard C compiler (like GCC or Clang), making WASM modules portable to a wider range of architectures. The output C code aims to be readable and understandable, offering insight into the WASM module's logic. This tool is part of the WebAssembly Binary Toolkit (WABT), a suite of tools for working with WASM files.

The generated C code might not be as performant as native WASM execution.
Complex WASM modules can result in large and intricate C code.

To convert a WASM file named 'module.wasm' to a C file named 'module.c', you would use the command:
wasm2c module.wasm -o module.c
You can then compile 'module.c' using a C compiler like GCC:
gcc module.c -o module

wasm2c is part of the WABT (WebAssembly Binary Toolkit) project, which was created to provide developers with tools for working with WebAssembly files. It emerged alongside the development and standardization of the WebAssembly specification, aimed at enabling more portable and efficient web applications and beyond.

wasm-validate(1), wasm-objdump(1)