parcel-bundler /parcel
The zero configuration build tool for the web. 📦🚀
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README
NOTE: This is Parcel v3 (currently in alpha). For v2, see the v2 branch. Parcel is a batteries-included build tool for the web. It combines a great out-of-the-box development experience with a scalable architecture that can take your project from just getting started to massive production application. Features - 😍 Batteries included – Parcel supports many languages and file types out of the box, from web technologies like HTML, CSS, and JavaScript, to assets like images, fonts, videos, and more. It has a built-in dev server with hot reloading, beautiful error diagnostics, and much more. No configuration needed! - ⚡️ Lightning fast – Parcel is written in Rust for native performance, taking advantage of all of the cores on your machine. Extend it with native plugins written in Rust, Go, Swift, or any language that supports the C ABI. - 🚀 Automatic production optimization – Parcel optimizes your whole app for production automatically. This includes tree-shaking and minifying your JavaScript, CSS, and HTML, resizing and optimizing images, content hashing, automatic code splitting, and much more. - 🎯 Ship for any target – Parcel automatically transforms your code for your target environments. From modern and legacy browser support, to zero config JSX and TypeScript compilation, Parcel makes it easy to build for any target – or many! - 🌍 Scalable – Parcel requires zero configuration to get started. But as your application grows and your build requirements become more complex, it's possible to extend Parcel in just about every way. A simple configuration format and powerful native and JavaScript plugin system means Parcel can support projects of any size or complexity. Getting Started See the following guides in our documentation on how to get started with Parcel. Building a webapp with Parcel Building a library with Parcel Migrating from Parcel v2 Documentation Read the docs at https://v3.parceljs.org/docs/. Community - ❓ Ask questions on GitHub Discussions. - 💬 Join the community on Discord. - 📣 Stay up to date on new features and announcements on Twitter. Contributors This project exists thanks to all the people who contribute. [[Contribute]](CONTRIBUTING.md). Backers Thank you to all our backers! 🙏 [Become a backer] Sponsors Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]
Top issues
#4332Parcel 2 doesn't detect changes in linked dependencies.91 comments · 2020-03-15#8615Parcel Serve 2.8.0 randomly crashes while rebuilding69 comments · 2022-11-09#1762Uncaught ReferenceError: regeneratorRuntime69 comments · 2018-07-19#4145 Error: Cannot read property 'hashReferences' of undefined48 comments · 2020-02-16#5683Regression: `Uncaught error: Cannot find module`42 comments · 2021-01-19#1186Ignore certain link targets in HTML href37 comments · 2018-04-14#7271Parcel wipes out Package.json when installing dependencies 35 comments · 2021-11-09#5985"Error: Does not have node" when importing assets and using module/nomodule pattern35 comments · 2021-03-11
Discussions
#10349Security Vulnerability Disclosure1 comments · 2026-08-15#10347Oxc as a replacement for SWC?1 comments · 2026-07-29#10346Oxc as a replacement for SWC?0 comments · 2026-07-29#10318how to properly setup a bare minimal angular project using parcel1 comments · 2026-05-31#10277Might be a Parcel bug but I'm not sure: Parcel build failing to resolve `zstddec/stream`1 comments · 2026-02-23#10270Add Hostinger to deployment documentation0 comments · 2026-02-03#10255Upgraded version of elm-hot0 comments · 2026-01-08#10241Upcoming changes to oxvg3 comments · 2025-11-23
Latest release
v2.16.4 v2.16.4 2026-02-02Fixed - Dev server - Add --no-cors option to disable CORS headers – Details