Unlocking Rust's Full Potential with WASM

#rust May 5, 2025

Rust and WebAssembly are a powerful combination for high-performance web applications. This article explores how Rust's memory safety and speed integrate seamlessly with WebAssembly to deliver native-like performance in the browser.

Why Rust for WebAssembly?

Memory Safety by Design

Rust's ownership model eliminates common memory bugs without needing a garbage collector, making it ideal for deterministic WebAssembly execution.

Zero Cost Abstractions

Rust's optimizations ensure that high-level abstractions don't add runtime overhead when compiled to WebAssembly.

Performance Benchmark Results

Image Processing

JavaScript 900ms 1.5s Rust + WASM

3D Rendering

JavaScript 500ms 1.45s Rust + WASM

Getting Started Example


// src/lib.rs
#[wasm_bindgen]
pub fn add(a: i32, b: i32) -> i32 {
    a + b
}

// JavaScript
import init, { add } from './pkg/your_wasm_module.js';

init().then(() => {
    console.log(add(2, 3)); // 5
});

Ready to Build?

Rust and WebAssembly open up new possibilities for high-performance web applications. Compile your code to WASM and experience native speed in the browser.

Start with Rust & WASM