Verdaccio is a simple, zero-config-required local private npm proxy 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), caching the downloaded modules along the way. For those looking to extend their storage capabilities, Verdaccio supports various community-made plugins to hook into services such as Amazon's s3 and Google Cloud Storage.

Verdaccio is run by volunteers; nobody is working full-time on it. If you find this project to be useful and would like to support its development, consider making a donation - your logo might end on the readme. 😉

Use private packages

If you want to use all the benefits of npm package system in your company without sending all code to the public, and use your private packages just as easy as public ones.

Cache npmjs.org registry

If you have more than one server you want to install packages on, you might want to use this to decrease latency
(presumably "slow" npmjs.org will be connected to only once per package/version) and provide limited failover (if npmjs.org is down, we might still find something useful in the cache) or avoid issues like How one developer just broke Node, Babel and thousands of projects in 11 lines of JavaScript, Many packages suddenly disappeared or Registry returns 404 for a package I have installed before.

Link multiple registries

If you use multiples registries in your organization and need to fetch packages from multiple sources in one single project you might take advance of the uplinks feature with Verdaccio, chaining multiple registries and fetching from one single endpoint.

Override public packages

If you want to use a modified version of some 3rd-party package (for example, you found a bug, but maintainer didn't accept pull request yet), you can publish your version locally under the same name. See in detail here.

E2E Testing

Verdaccio has proved to be a lightweight registry that can be
booted in a couple of seconds, fast enough for any CI. Many open-source projects use Verdaccio for end to end testing, to mention some examples:

• create-react-app (+77k ⭐️)
• Storybook (+46k ⭐️)
• Gatsby (+43k ⭐️)
• Babel.js (+36k ⭐️)
• Angular CLI (+21k ⭐️)
• Apollo GraphQL (+12k ⭐️)
• Aurelia Framework (+12k ⭐️)

Talks

Don't miss the last talk at OpenJS World 2020 about Cover your Projects with a Multi purpose Lightweight Node.js Registry.

You might want to check out as well our previous talks:

• ViennaJS Meetup - Introduction to Verdaccio by Priscila Olivera and Juan Picado
• Open Source? trivago - Verdaccio (Ayush and Juan Picado) January 2020
• GitNation Open Source Stage - How we have built a Node.js Registry with React - Juan Picado December 2019