The tiny all-in-one development tool for modern web apps, in a single 2mb file with no dependencies.
All the features you'd expect and more, from development to production:
🔨 No entry points or pages to configure - just HTML files with
import "packages" from npm without installation
📦 Smart bundling and caching for npm dependencies
↻ Hot reloading for modules, Preact components and CSS
⚡️ Lightning-fast JSX support that you can debug in the browser
💄 Import CSS files and CSS Modules (
🔩 Out-of-the-box support for TypeScript
📂 Static file serving with hot reloading of CSS and images
🗜 Highly optimized Rollup-based production output (
📑 Crawls and pre-renders your app's pages to static HTML at build time
🏎 Built-in HTTP2 in dev and prod (
wmr serve --http2)
🔧 Supports Rollup plugins, even in development where Rollup isn't used
Read the Docs to learn more.