wasm-opt
Optimize WebAssembly binary files.
More information: https://github.com/webassembly/binaryen.
- Apply default optimizations and write to a given file:
wasm-opt -O input.wasm -o output.wasm
- Apply all optimizations and write to a given file (takes more time, but generates optimal code):
wasm-opt -O4 input.wasm -o output.wasm
- Optimize a file for size:
wasm-opt -Oz input.wasm -o output.wasm
- Print the textual representation of the binary to console:
wasm-opt input.wasm --print