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Gumroad Just Open-Sourced Its Code — A Masterclass in Building Pro React Apps

3 min readApr 8, 2025

Gumroad just dropped a bombshell for React developers: they open-sourced their entire codebase. It’s not just a peek behind the curtain — it’s a full-blown blueprint of how to build scalable, professional-grade apps using React.

What I often hear from beginner React developers, and programmers in general, is that they’ve learned basics of Javascript, CSS, HTML, and React, but they don’t know how to build a “real” app.

It’s something that bothers a lot of people. You learn theory, but how stuff is done seems like hidden behind door, and you feel that building a TODO app is very different from enterprise code.

It’s understandable to worry about it and the ability to perform as a software developer in a company, questioning if you’re ready to get a job.

Fortunately for React developers, just now, a new help came from unexpected source.

Gumroad, well known platform to sell digital items, open sourced it’s codebase.

For the sake of the topic I won’t dig into licensing stuff, because it is only a concern for people who want to build something commercial/public/used by others with that codebase.

For study purposes it’s perfectly fine to browse the code and even download it or try to run…

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Tom Smykowski
Tom Smykowski

Written by Tom Smykowski

I help startups ship stunning, scalable MVPs—fast. With deep frontend expertise and AI-powered development workflows, I build and audit. Programmer

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