Fullstack dev server Hot reloading HTML & static sites Standalone HTML CSS Loaders Single-file executable Plugins Macros Bytecode Caching Minifier esbuild

Plugins

Universal plugin API for extending Bun's runtime and bundler

Single-file executable

Generate standalone executables from TypeScript or JavaScript files with Bun

Macros

Run JavaScript functions at bundle-time with Bun macros

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Lifecycle hooks Reference Usage Plugin lifecycle Namespaces onStart onResolve onLoad .defer()Native plugins Creating a native plugin in Rust onBeforeParse onEnd