parcel

name: parcel description: Parcel zero-config bundler. Use for simple bundling.

Parcel

Parcel is the "Zero Config" bundler. It works out of the box for React, Vue, Rust (Wasm), and more. v2.12 uses Lightning CSS for extreme performance.

When to Use

• Prototypes: You just want index.html to work.
• Simple Apps: You don't want to maintain a 500-line config file.
• Polyglot: You have images, Rust, and SCSS mixed together.

Core Concepts

Zero Config

It auto-detects transforms. If you import './style.scss', it installs sass automatically.

Caching

Aggressive filesystem caching makes restarts instant.

Workers

Parallelizes work across all cores.

Best Practices (2025)

Do:

• Use <script type="module">: Point Parcel at your HTML file as the entry.
• Use macros: Parcel supports build-time macros.

Don't:

• Don't fight the auto-install: Let Parcel manage its plugins.

References

• Parcel Documentation