WABT(1) General Commands Manual WABT(1)

wat2wasm — translate from WebAssembly text format to the WebAssembly binary format

wat2wasm [options] file

wat2wasm Read a file in the wasm text format, check it for errors, and convert it to the wasm binary format.

The options are as follows:

Print this help message
Print version information
, --verbose
Use multiple times for more info
Turn on debugging the parser of wat files
, --dump-module
Print a hexdump of the module to stdout
Enable Experimental exception handling
Disable Import/export mutable globals
Disable Saturating float-to-int operators
Disable Sign-extension operators
Disable SIMD support
Enable Threading support
Enable Typed function references
Disable Multi-value
Enable Tail-call support
Disable Bulk-memory operations
Disable Reference types (externref)
Enable Custom annotation syntax
Enable Code metadata
Enable Garbage collection
Enable 64-bit memory
Enable Multi-memory
Enable Extended constant expressions
Enable all features
, --output=FILE
Output wasm binary file. Use "-" to write to stdout.
, --relocatable
Create a relocatable wasm binary (suitable for linking with e.g. lld)
Write all LEB128 sizes as 5-bytes instead of their minimal size
Write debug names to the generated binary file
Don't check for invalid modules

Parse test.wat and write to .wasm binary file with the same name

$ wat2wasm test.wat

Parse test.wat and write to binary file test.wasm

$ wat2wasm test.wat -o test.wasm

Parse spec-test.wast, and write verbose output to stdout (including the meaning of every byte)

$ wat2wasm spec-test.wast -v

wasm-decompile(1), wasm-interp(1), wasm-objdump(1), wasm-stats(1), wasm-strip(1), wasm-validate(1), wasm2c(1), wasm2wat(1), wast2json(1), wat-desugar(1), spectest-interp(1)

If you find a bug, please report it at
https://github.com/WebAssembly/wabt/issues.

October 20, 2024 Linux 6.10.10-arch1-1