WasmBuilder

WasmBuilder is a JavaScript package initially released in 2019, designed for the manual construction of WebAssembly (WASM) modules. It operates at an extremely low level, requiring developers to specify WASM bytecode directly in hexadecimal format. The library provides a programmatic interface to define functions, memory, and tables, offering fine-grained control over the WASM module's internal structure without relying on higher-level language compilation. Its last recorded update was in October 2019, with version 0.0.16, indicating the project is no longer actively maintained. This low-level approach differentiates it from compilers and makes it suitable primarily for educational purposes, deep dives into WASM internals, or highly specialized niche use cases requiring byte-level WASM manipulation.