'npm install' extremely slow on Windows

node.js windows npm build
Simon Knittel picture Simon Knittel · Apr 1, 2015 · Viewed 49.6k times · Source

For me is npm install extremely slow. I'm using Windows 8.1 with the latest npm version. My connection speed is around 100Mbit/s.

The project I'm trying to install has around 20 packages/dependencies and it takes around 30 Minutes to install all dependencies ...

Does anyone have a clue?

Answer

Christof Kälin picture Christof Kälin · Nov 21, 2016

I ran into the same problem, using --verbose as peterh mentioned showed me the source of the problem: I am behind a proxy, which uses its own certificates for https-connections. According to user "Mletter1" on https://github.com/npm/npm/issues/8872 the issue is quite easily solved by using http:

npm config set registry http://registry.npmjs.org/ --global

And voilà, it's fast again. Of course you should only do this, if you're ok with cleartext npm infos over the net ;-)

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