Verdaccio

A lightweight Node.js private proxy registry. Verdaccio is a simple, zero-config-required local private NPM registry. No need for an entire database just to get started. Verdaccio comes out of the box with its own tiny database, and the ability to proxy other registries (eg. npmjs.org), also introduces caching the downloaded modules along the way. For those who are looking to extend their storage capabilities, Verdaccio supports various community-made plugins to hook into services such as Amazon's S3, Google Cloud Storage or create your own plugin. If you want to use all benefits of npm package system in your company without sending all the code to the public, and use your private packages just as easy as public ones. If you use multiple registries in your organization and need to fetch packages from multiple sources in one single project, you can chain multiple registries and fetch from one single endpoint.