| WABT(1) | General Commands Manual | WABT(1) |

NAME

wasm2c — convert a WebAssembly binary file to a C source and header

SYNOPSIS

| wasm2c | [options] file |

wasm2c takes a WebAssembly module and produces an equivalent C source and header.

The options are as follows:

--helpPrint a help message--versionPrint version information-v, --verboseUse multiple times for more info-o, --output=FILENAMEOutput file for the generated C source file, by default use stdout-n, --module-name=MODNAMEUnique name for the module being generated. This name is prefixed to each of the generaed C symbols. By default, the module name from the names section is used. If that is not present the name of the input file is used as the default.--enable-exceptionsEnable Experimental exception handling--disable-mutable-globalsDisable Import/export mutable globals--disable-saturating-float-to-intDisable Saturating float-to-int operators--disable-sign-extensionDisable Sign-extension operators--disable-simdDisable SIMD support--enable-threadsEnable Threading support--enable-function-referencesEnable Typed function references--disable-multi-valueDisable Multi-value--enable-tail-callEnable Tail-call support--disable-bulk-memoryDisable Bulk-memory operations--disable-reference-typesDisable Reference types (externref)--enable-annotationsEnable Custom annotation syntax--enable-code-metadataEnable Code metadata--enable-gcEnable Garbage collection--enable-memory64Enable 64-bit memory--enable-multi-memoryEnable Multi-memory--enable-extended-constEnable Extended constant expressions--enable-allEnable all features--no-debug-namesIgnore debug names in the binary file

Parse binary file test.wasm and write test.c and test.h

$ wasm2c test.wasm -o test.c

Parse test.wasm, write test.c and test.h, but ignore the debug names, if any

$ wasm2c test.wasm --no-debug-names -o test.c

| September 23, 2025 | Debian |