any one suggest rust library to parser wasm to wat and than edit wat file convert wat to wasm again
Is this what you're looking for?
https://github.com/bytecodealliance/wasm-tools
https://crates.io/crates/wasmparser
To parse wasm to wat you can use the wasmprinter crate in the wasm-tools repository, and to go the other direction of converting wat to wasm you can use the wat crate. The wast crate provides an AST of the text format but it's not built to be easy to work with.
Last updated: Dec 06 2025 at 05:03 UTC