WASM Rust Tutorial with Rust: Supercharge Your Web Apps with Rust & WebAssembly (Step by Step)

In this wasm rust tutorial, you’ll learn how to build blazing-fast web applications using Rust and WebAssembly (WASM). You’ll start from installing rustup and wasm-pack, walk through hello_wasm setup, and see Rust functions called directly from JavaScript in the browser. Discover how wasm-bindgen bridges UTF‑8/UTF‑16, compare performance trade-offs, and learn best practices for real-world Rust + WebAssembly integration. Very basic WebAssembly demo to start with!

Whether you're a web developer, a Rust beginner, or exploring WebAssembly for performance, this video walks you through everything you need to know.

🚀 What You'll Learn
What is WebAssembly (WASM) and how it works in modern browsers

Why use Rust for WebAssembly instead of JavaScript or C++

Step-by-step WASM tutorial: Compile Rust to WebAssembly

How to use wasm-pack and set up the Rust WebAssembly toolchain

Creating your first Rust WASM project from scratch

Using wasm-bindgen to bridge Rust with JavaScript (JS)

How to call Rust functions from JavaScript

Converting between UTF-8 and UTF-16 in WebAssembly

Comparing Rust vs JavaScript performance in the browser

How to run Rust in the browser using HTML + JS

Full Rust WASM development workflow, explained clearly

Serving a WebAssembly app over HTTP with simple tools

🛠️ Tools You'll Use
rustup for installing Rust

wasm-pack for compiling Rust to WASM

wasm-bindgen for Rust ↔ JavaScript interop

Basic http-server to run your app locally


Chapters:
00:00 Introduction
00:27 Key Concepts
00:46 What is WebAssembly
01:27 Why use Rust For WebAssembly
01:47 What is Rust?
02:25 Why Rust and WebAssembly are an awesome combo
02:45 WebAssembly toolchain with Rust
04:39 Installing Rust Toolcahain
07:12 Creating Rust Project
11:30 Compiling our Rust code with wasm-pack
12:20 Using compiled project in HTML/JavaScript
14:07 Serving WASM Rust project over http
14:56 WASM Rust project workflow explained

👨‍💻 Who This Is For
Frontend developers looking to explore Rust for web development

Beginners seeking a WebAssembly tutorial using modern tools

Anyone curious about how to build web apps with Rust and WASM

Developers interested in Rust performance and JavaScript integration

Related:
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   • Rust Course 2025 – Learn Rust Programming ...  
Article version (with code): https://medium.com/@a1guy/rust-webass...
#wasmrust #webassembly #rustprogramming #wasmtutorial #webdevelopment