Stop watching tutorials. Start studying real code.
Here are 10 GitHub repositories that will level up your skills faster than any course.
1. Build Your Own X
What: Collection of tutorials for building your own technology from scratch — database, OS, blockchain, you name it.
Why: Nothing teaches you better than building things from the ground up.
2. System Design Primer
What: Learn how to design large-scale systems. Prep for system design interviews.
Why: System design is the #1 skill that separates junior from senior engineers.
3. Free Programming Books
What: A massive curated list of free books and courses.
Why: No excuses. Education is free if you know where to look.
4. The Art of Command Line
What: Master the command line in one page.
Why: Terminal skills make you 10x faster. Period.
5. Developer Roadmap
What: Visual roadmaps for different developer paths — frontend, backend, DevOps, AI.
Why: Know exactly what to learn next instead of wandering aimlessly.
6. Awesome
What: Curated lists of awesome frameworks, libraries, and resources.
Why: One bookmark to rule them all.
7. Public APIs
What: A collective list of free APIs for building projects.
Why: Stop building TODO apps. Build something real with real data.
8. Coding Interview University
What: A complete computer science study plan to become a software engineer.
Why: Everything you need to pass any technical interview.
9. JavaScript Algorithms
What: Algorithms and data structures implemented in JavaScript with explanations.
Why: Understand the fundamentals, in a language you probably already know.
10. Real World
What: The same app (a Medium clone) built with different frameworks.
Why: Compare React vs Vue vs Angular vs Svelte with identical functionality.
Bonus Tip
Don't just star these repos. Actually USE them. Pick one project from 'Build Your Own X' and build it this week.
Which repo is your favorite? Any I missed? Let me know below!
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