Built-in Bundler

Bun includes a fast JavaScript and TypeScript bundler. It can bundle your code for browsers, Node.js, or Bun itself without any configuration.

Basic Bundling

Bundle your code with a single command:

Target Platforms

Bundle for different platforms:

Output Formats

Control the output format:

Code Splitting

Automatically split code for optimal loading:

Plugins and Loaders

Extend the bundler with plugins:

Minification

Optimize bundle size:

Exercise: Build Command Generator

Create a function to generate build commands:

Exercise: Bundle Size Estimator

Create a function to estimate bundle size reduction: