bun build in Bun

From the Bun cheat sheet · Bundler · verified Jul 2026

Bundle code for browsers and servers

bash

# CLI bundling
bun build ./src/index.ts --outdir ./dist
bun build ./src/index.ts --outdir ./dist --minify
bun build ./src/index.ts --target browser

💡 bun build replaces Webpack/esbuild — native bundling with zero config

⚡ Use --compile to create a single executable binary that runs without Bun installed

📌 --target browser strips Node.js APIs; --target bun optimizes for the Bun runtime

🟢 Code splitting with --splitting creates shared chunks for multi-entry bundles

buildbundlecompile

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