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How we make npm packages work in the browser

Last updated 2 years ago by Ives Van Hoorne


I always left npm dependency support out of scope during initial development of CodeSandbox. I thought it would be impossible to install an arbitrary, random amount of packages in the browser, even thinking about it caused my brain to block.

Nowadays npm support is one of the most defining features of CodeSandbox, so somehow we succeeded in making it work. It took a lot of iterations to make it work in any scenario, we did multiple rewrites and even now we can still improve the logic. I’ll explain how npm support started, what we have now and what we still can do to improve it.

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