bunup

Performance

Instant builds by design. With Bun’s native speed, builds and rebuilds are extremely quick, even in monorepos. Faster feedback loops, higher productivity, calmer flow.

🚀 Quick Start

Create a TypeScript file:

``ts
// src/index.ts
export function greet(name: string): string {
return Hello, ${name}!;
}
`

Build it instantly:

`bash
bunx bunup
`

Outputs to dist/ with ESM and .d.ts types.

Need CommonJS too?

`bash
bunx bunup --format esm,cjs
`

Want to generate and sync package exports automatically?

`bash
bunx bunup --exports
`

Scaffold

Spin up a modern, ready-to-publish TypeScript or React component library (or a basic starter) in ~10 seconds:

`bash
bunx @bunup/cli@latest create
`

See more in Scaffold with Bunup.

Features

- ⚡ Instant builds — lightning-fast by default
- 🎨 CSS support out of the box — import CSS directly, with built-in CSS Modules support.
- 📝 TypeScript declarations — clean, accurate .d.ts` files
- 🪓 Declaration splitting — smaller, cleaner type bundles
- 🔋 Batteries included — auto-exports, unused dependency detection, and more
- 🏗️ Workspace-ready — build multiple packages from one config and one command

For more, see the full documentation: https://bunup.dev

📚 Examples

Check out the examples directory for example usage:

- Simple TypeScript library
- Workspace with multiple packages
- React component library styled with plain CSS
- React component library styled with CSS Modules
- React component library styled with Tailwind CSS

❤️ Contributing

We welcome contributions! Please read the contributing guide.

!Contributors