callstack/repack

Repack is a webpack-based bundler for React Native applications that brings the full webpack ecosystem to React Native development.

React Native traditionally relies on Metro as its bundler, which limits access to webpack's extensive plugin ecosystem and advanced features. Repack solves this by replacing Metro with webpack, allowing developers to leverage webpack's mature tooling, loaders, and plugins while building React Native apps. The toolkit handles the specific requirements of React Native bundling while maintaining compatibility with webpack's configuration patterns and community extensions.

Repack suits teams already invested in webpack workflows who want to apply that expertise to React Native, or projects requiring advanced bundling capabilities like code-splitting and module federation that go beyond Metro's defaults. It is particularly valuable for monorepo setups and applications needing fine-grained control over bundle optimization. Teams comfortable with webpack configuration will find the transition straightforward, while those new to webpack may face a steeper learning curve compared to Metro's simpler defaults.

The project shows consistent maintenance with regular updates addressing both bug fixes and feature enhancements. Development activity demonstrates responsiveness to community issues and pull requests, with the maintainers actively refining the toolkit based on user feedback. The codebase is written in TypeScript, providing type safety for contributors and users extending the toolkit.