RustWasm

Learn Rust + WebAssembly by doing

Interactive lessons and a safe browser-based playground to master Rust and WebAssembly — from basics to real-world applications.

Start Learning Playground

Interactive Lessons

Hands-on lessons organized by difficulty and topic. Learn at your own pace with real code examples.

Safe Playground

Run Rust → Wasm code directly in your browser. Sandboxed execution keeps everything safe and fast.

Real-World Examples

Build APIs, simulations, cryptography tools, and more — practical projects you can use today.

hello.rs
use wasm_bindgen::prelude::*;

#[wasm_bindgen]
pub fn greet(name: &str) -> String {
    format!("Hello, {}!", name)
}