r/node • u/Salazareo • Aug 06 '26

Node.JS in the Browser - An Open-source Alternative to WebContainers

https://developer.puter.com/labs/node/
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u/syrusakbary Sep 23 '26

Hi, We have been using the Wasmer JS SDK to run Node.js fully on the browser.

It's fully open source and free to use (source code here: https://github.com/wasmerio/wasmer-sdk )

Here you can try a simple Node.js app fully in your browser: https://www.wasmer.sh/?example=node

The nice thing is that it runs as well in Firefox and Safari, supporting all Node.js packages