Parcel
by parcel-bundler
Parcel: Lightning-Fast Web Bundler with Zero Config
Blazing fast web application bundler that works out of the box with no configuration, supporting all modern web assets and formats.
- 44,044+ GitHub stars
- Built with JavaScript
- Zero configuration required - works out of the box with intelligent defaults
- MIT License license
About This Project
Parcel is a modern web application bundler that eliminates the complexity traditionally associated with build tools. Unlike conventional bundlers that require extensive configuration files and plugin setups, Parcel analyzes your code automatically and handles all transformations, optimizations, and bundling with intelligent defaults.
Built for speed and developer experience, Parcel leverages multi-core processing and aggressive caching to deliver incredibly fast build times. It supports all major web technologies including JavaScript (ES6+), TypeScript, CSS preprocessors, HTML, and static assets without requiring any plugins or configuration. Simply point it at your entry file and Parcel handles the rest.
The bundler includes powerful features like automatic code splitting, hot module replacement for instant updates during development, tree shaking for smaller bundles, and built-in support for modern module formats including CommonJS and ES modules. It also provides production-ready optimizations including minification, image optimization, and scope hoisting out of the box.
Whether you're building a simple static site or a complex single-page application, Parcel scales to your needs while maintaining its zero-configuration philosophy. Its intuitive approach makes it perfect for rapid prototyping, learning web development, or building production applications without the overhead of complex build configurations.
Key Features
- Zero configuration required - works out of the box with intelligent defaults
- Blazing fast builds with multi-core processing and aggressive caching
- Automatic code splitting and tree shaking for optimized bundle sizes
- Built-in hot module replacement for instant development feedback
- Native support for JavaScript, TypeScript, CSS, HTML, and all common asset types
- Production optimizations including minification and image compression included
- Automatic transpilation based on browserslist targets
- Support for both CommonJS and ES module formats
How You Can Use It
Rapid prototyping of web applications without build configuration overhead
Building production-ready single-page applications with automatic optimizations
Creating static websites with modern JavaScript and CSS preprocessing
Developing component libraries with support for multiple output formats
Teaching web development without introducing build tool complexity
Migrating legacy projects to modern bundling without extensive refactoring
Who Is This For?
Frontend developers seeking fast, zero-config bundling; beginners learning modern web development; teams wanting to reduce build configuration complexity