wasm2wat(1)

WABT(1) General Commands Manual WABT(1)

NAME

wasm2wattranslate from the binary format to the text format

SYNOPSIS

wasm2wat [options] file

DESCRIPTION

wasm2wat Read a file in the WebAssembly binary format, and convert it to the WebAssembly text format.

The options are as follows:

--help
Print a help message
--version
Print version information
-v, --verbose
Use multiple times for more info
-o, --output=FILENAME
Output file for the generated wast file, by default use stdout
-f, --fold-exprs
Write folded expressions where possible
--enable-exceptions
Enable Experimental exception handling
--disable-mutable-globals
Disable Import/export mutable globals
--disable-saturating-float-to-int
Disable Saturating float-to-int operators
--disable-sign-extension
Disable Sign-extension operators
--disable-simd
Disable SIMD support
--enable-threads
Enable Threading support
--enable-function-references
Enable Typed function references
--disable-multi-value
Disable Multi-value
--enable-tail-call
Enable Tail-call support
--disable-bulk-memory
Disable Bulk-memory operations
--disable-reference-types
Disable Reference types (externref)
--enable-annotations
Enable Custom annotation syntax
--enable-code-metadata
Enable Code metadata
--enable-gc
Enable Garbage collection
--enable-memory64
Enable 64-bit memory
--enable-multi-memory
Enable Multi-memory
--enable-extended-const
Enable Extended constant expressions
--enable-all
Enable all features
--inline-exports
Write all exports inline
--inline-imports
Write all imports inline
--no-debug-names
Ignore debug names in the binary file
--ignore-custom-section-errors
Ignore errors in custom sections
--generate-names
Give auto-generated names to non-named functions, types, etc.
--no-check
Don't check for invalid modules

EXAMPLES

Parse binary file test.wasm and write text file test.wast

$ wasm2wat test.wasm -o test.wat

Parse test.wasm, write test.wat, but ignore the debug names, if any

$ wasm2wat test.wasm --no-debug-names -o test.wat

SEE ALSO

wasm-decompile(1), wasm-interp(1), wasm-objdump(1), wasm-stats(1), wasm-strip(1), wasm-validate(1), wasm2c(1), wast2json(1), wat-desugar(1), wat2wasm(1), spectest-interp(1)

BUGS

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

July 22, 2026 Linux 6.12.85-6.12-alt1