Discover, Play, and Learn Open Source
Build your next project on open source
Describe what you're building and we'll find your stack. Then learn every project by playing our typing game — earn XP, level up, and actually understand the tools you ship with.
Try: "warehouse management system" or "real-time chat app"
581
Projects
16.0M
Stars Tracked
Free
Forever Open Source
Manifesto
Code is no longer the moat.
Any AI can ship a feature overnight. What it can't replicate is the decade of trust, the 10,000 contributors, the community that shows up when something breaks at 3am.
Open source isn't just a licensing choice — it's the only sustainable competitive advantage left.
So we built a game for it. Type real code from real projects. Earn XP. Level up. And walk away actually understanding the tools you're betting on.
Find the projects worth betting on — then learn them by playing.
Featured Projects
View all
freeCodeCamp/freeCodeCamp
freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
facebook/react
The library for web and native user interfaces.
torvalds/linux
Linux kernel source tree
vuejs/vue
This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core
openclaw
Your own personal AI assistant. Any OS. Any Platform. The lobster way. 🦞
tensorflow/tensorflow
An Open Source Machine Learning Framework for Everyone
How It Works
Find Your Stack
Describe what you're building. Our AI finds the open-source frameworks, databases, and tools you need.
Play to Learn
Type real code from real projects in our typing game. Earn XP, level up, and understand the tools you ship with.
Build Your Arsenal
Curate your personal toolkit of favorite open-source projects. Share your stack with the world.
Submit & Grow
Are you an open-source author? Submit your project and let developers discover it through play.