WebAssembly (WASM) Development

WebAssembly (WASM) is a low-level compilation language that allows code to execute with near-native speed in browsers and beyond.

WASM opens up new possibilities for web development, enabling the use of C, C++, Rust, Go, and other languages to create high-performance web applications. This guide covers all aspects of WebAssembly development, from fundamentals to advanced techniques.

Developing with WebAssembly

There are various ways to create WebAssembly modules:

Emscripten (C/C++): The most popular tool for compiling C/C++

live demo · related simulation● LIVE

Use instantiateStreaming for simultaneous loading and co

SharedArrayBuffer and Web Workers

WebAssembly supports concurrency through SharedArrayBuffer and Web Workers.

Frequently asked questions

Can compiled modules be cached?

Compiled modules can be cached

Should you provide a fallback for older browsers?

Does WASM execute in a sandbox?

WASM executes in a sandbox

Is there direct access to the DOM (only through JS)?

There is no direct access to the DOM (only through JS)

▶ Try it live

Everything above runs in your browser — open Hash Function Avalanche Visualizer and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

▶ Open Hash Function Avalanche Visualizer simulation