https://github.com/facebook/metro

🚇 The JavaScript bundler for React Native
https://github.com/facebook/metro

bundler javascript react-native

Last synced: 7 days ago
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🚇 The JavaScript bundler for React Native

• Host: GitHub
• URL: https://github.com/facebook/metro
• Owner: facebook
• License: mit
• Created: 2016-12-14T23:02:54.000Z (almost 8 years ago)
• Default Branch: main
• Last Pushed: 2024-05-20T16:42:21.000Z (6 months ago)
• Last Synced: 2024-05-23T07:36:37.067Z (6 months ago)
• Topics: bundler, javascript, react-native
• Language: JavaScript
• Homepage: https://metrobundler.dev
• Size: 37.1 MB
• Stars: 5,085
• Watchers: 98
• Forks: 598
• Open Issues: 326
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

Awesome Lists containing this project

• awesome-github-star - metro
• awesome-list - metro

README

        
# Metro

[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/facebook/metro/blob/HEAD/LICENSE)

[![npm package version](https://img.shields.io/npm/v/metro?color=brightgreen)](https://www.npmjs.com/package/metro)

[![facebook/metro/nightly-tests](https://github.com/facebook/metro/actions/workflows/nightly-tests.yml/badge.svg)](https://github.com/facebook/metro/actions/workflows/nightly-tests.yml)

[![Code coverage](https://codecov.io/gh/facebook/metro/branch/main/graph/badge.svg?token=oMHdoKhFZB)](https://codecov.io/gh/facebook/metro)

[![Follow @MetroBundler on Twitter](https://img.shields.io/twitter/follow/MetroBundler?style=social)](https://twitter.com/intent/follow?screen_name=MetroBundler)

🚇 The JavaScript bundler for React Native.

- **🚅 Fast**: We aim for sub-second reload cycles, fast startup and quick bundling speeds.

- **⚖️ Scalable**: Works with thousands of modules in a single application.

- **⚛️ Integrated**: Supports every React Native project out of the box.

## Installation

Metro is included with React Native — see the [React Native docs](https://reactnative.dev/docs/getting-started) to quickly get started ⏱️.

To add Metro to an existing project, see our [Getting Started guide](https://metrobundler.dev/docs/getting-started).

## Documentation

All available documentation, including on [configuring Metro](https://metrobundler.dev/docs/configuration), can be found on the [Metro website](https://metrobundler.dev/docs/getting-started).

Source code for documentation is located in this repository under `docs/`.

## Contributing

Metro was previously part of the [react-native](https://github.com/facebook/react-native) repository. In this standalone repository it is easier for the team working on Metro to respond to issues and pull requests. See [react-native#13976](https://github.com/facebook/react-native/issues/13976) for the initial announcement.

### [Code of Conduct](https://code.fb.com/codeofconduct)

Meta has adopted a Code of Conduct that we expect project participants to adhere to. Please read [the full text](https://code.fb.com/codeofconduct) so that you can understand what actions will and will not be tolerated.

### [Contributing guide](https://github.com/facebook/metro/blob/main/CONTRIBUTING.md)

Read our [contributing guide](https://github.com/facebook/metro/blob/main/CONTRIBUTING.md) to learn about our development process, how to propose bug fixes and improvements, and how to build and test your changes to Metro.

### Discussions

Larger discussions and proposals concerning React Native and Metro are discussed in [**@react-native-community/discussions-and-proposals**](https://github.com/react-native-community/discussions-and-proposals).

## License

Metro is MIT licensed, as found in the LICENSE file.