Yarn is a modern, fast, and reliable package manager for JavaScript applications, which is developed and maintained by Facebook. It aims to improve upon other package managers, such as npm, by enhancing performance, security, and consistency in project dependency management. Yarn achieves this through deterministic installs, which means that it ensures the same project setup across all environments and developers by creating a `yarn.lock` file that locks versions of dependencies. It supports features like parallel installation, offline cache for installing without internet, workspaces for managing multiple packages in a single repository, and an efficient license checker. By leveraging advanced caching and network request batching, Yarn significantly speeds up package installation processes. It also provides enhanced support for community plugins, thus allowing developers to extend its functionalities according to specific project needs. For developers looking to streamline dependency management while maintaining robust security and performance, Yarn presents a compelling choice.

View the most prominent open source yarn projects in the list below. Click on a specific project to view its alternative or complementary packages.