explaingit

yewstack/yew

📈 Trending★ 32,638RustAudience · developerComplexity · 3/5ActiveLicenseSetup · moderate

TLDR

Rust framework for building interactive web apps that run in the browser as WebAssembly, with a React-like component model and no JavaScript required.

Mindmap

mindmap
  root((Yew))
    What it does
      WebAssembly frontend
      Component-based UI
      Virtual DOM diffing
      Server-side rendering
    Key features
      JSX-like html macro
      Web Workers support
      Multi-threaded browser
      State management
    Use cases
      Performance-critical apps
      Rust full-stack projects
      Browser computation
      Shared Rust logic
    Tech stack
      Rust language
      WebAssembly target
      Component framework
    Audience
      Rust developers
      Web developers
      Performance engineers

Things people build with this

USE CASE 1

Build a high-performance dashboard or data visualization tool in Rust without writing JavaScript.

USE CASE 2

Create a full-stack web app where both backend and frontend share Rust types and business logic.

USE CASE 3

Offload heavy computations to browser Web Workers so the UI stays responsive while processing large datasets.

USE CASE 4

Render initial HTML on a Rust server, then hydrate it in the browser for fast first-page load.

Tech stack

RustWebAssemblyVirtual DOMWeb Workers

Getting it running

Difficulty · moderate Time to first run · 30min

Requires Rust toolchain and wasm-pack or similar build tool to compile to WebAssembly.

Use freely for any purpose, including commercial use, as long as you keep the copyright notice and license text.

In plain English

Yew is a Rust framework for building client-side web applications that run in the browser using WebAssembly. It allows developers to write interactive frontend code in Rust rather than JavaScript, with the Rust code compiled to WebAssembly and executed directly in the browser. The framework provides a component model similar to React: applications are built from components that manage their own state and render HTML through a JSX-like macro syntax called html!. Components communicate via properties passed from parent to child and callbacks for events. The virtual DOM diffing approach means only the parts of the page that actually changed get re-rendered. A notable feature highlighted in the README is support for multi-threaded execution in the browser. Web Workers allow offloading heavy computation to background threads, and Yew integrates with this so that computation-heavy tasks do not block the UI thread. Because Rust is a compiled, performance-oriented language, Yew applications can achieve performance characteristics difficult to match with interpreted JavaScript. Yew also supports server-side rendering for scenarios where the initial HTML should be generated on the server before being hydrated in the browser. When to use it: Yew is suited for Rust developers who want to build web frontends while staying within the Rust ecosystem, avoiding context-switching to JavaScript. It is particularly relevant when performance is critical, computation needs to happen in the browser, or when a codebase wants to share data types and logic between a Rust backend and a Rust frontend compiled to WebAssembly. The learning curve assumes familiarity with both Rust's ownership model and web development concepts.

Copy-paste prompts

Prompt 1
Show me how to create a simple counter component in Yew with state and event handlers.
Prompt 2
How do I use Web Workers in Yew to run a CPU-intensive task without blocking the UI?
Prompt 3
Give me a Yew example that fetches data from an API and renders it in a list with click handlers.
Prompt 4
How do I set up server-side rendering with Yew so the initial HTML is generated on the server?
Prompt 5
What's the best way to share types and validation logic between a Yew frontend and a Rust backend?
Open on GitHub → Explain another repo

Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.