If you spend any time coding, building products, or just exploring the depths of the tech universe, GitHub is your playground. But with millions of repositories, it can be overwhelming to find the gold. That’s why we’ve curated 16 GitHub repositories that you will actually use — no pressure, but you’ll probably thank us later.
Let’s dive in. 🚀
1. Awesome Lists ⭐
A curated universe of awesome resources across countless topics — from programming languages to design tools to public datasets. If you're looking for the best resources in any domain, this is your starting point.
Why you’ll use it:
It's the internet's most organized treasure chest.
2. The Algorithms 📚
A brilliant collection of algorithms in different programming languages with detailed explanations. Perfect for students, interview prep, and developers brushing up their skills.
Why you’ll use it:
Understand and visualize algorithms with code you can run.
3. Build Your Own X 🛠️
Ever wanted to build your own game engine, Docker clone, or cryptocurrency? This repo is a build-it-yourself roadmap with tutorials for almost everything.
Why you’ll use it:
You’ll learn how your favorite tools work from the ground up.
4. Free For Dev 💸
A curated list of SaaS, PaaS, and IaaS offerings with free tiers — perfect for developers bootstrapping projects.
Why you’ll use it:
Because we all love free stuff.
5. Free Programming Books 📖
A legendary collection of free programming books in dozens of languages and topics.
Why you’ll use it:
It’s like having an infinite coding library at your fingertips.
6. Roadmap.sh 🗺️
Wondering what to learn next? Roadmap.sh provides beautifully visualized learning paths for developers in frontend, backend, DevOps, and more.
Why you’ll use it:
It’s the GPS for your developer journey.
7. OSSU Computer Science 🎓
A complete, open-source computer science curriculum you can follow for free, modeled after top universities.
Why you’ll use it:
Get a CS degree, no tuition required.
8. Engineering Blogs 📝
A massive list of engineering blogs from companies like Netflix, Airbnb, and Uber.
Why you’ll use it:
Learn real-world engineering practices from industry leaders.
9. System Design Primer 🏗️
The go-to resource for learning system design — a must for cracking FAANG interviews.
Why you’ll use it:
It’s the holy grail for interview preparation and scalable system design.
10. Public APIs 🔗
A directory of free APIs for development across various domains: games, news, weather, finance, and more.
Why you’ll use it:
Instant project ideas. Instant integration opportunities.
11. Open Source Alternatives 🔄
A curated list of open-source alternatives to popular proprietary software.
Why you’ll use it:
Escape the subscription trap.
12. Papers We Love ❤️
A collection of classic and influential computer science papers that engineers actually love and reference.
Why you’ll use it:
Understand the theories that shaped modern computing.
13. Best Websites A Programmer Should Visit 🌐
A curated list of websites every programmer should know — covering learning, productivity, communities, and more.
Why you’ll use it:
Because you’ll always find something useful here.
14. LLMs From Scratch 🧠
Want to understand how Large Language Models like ChatGPT actually work? This repo walks you through building LLMs from scratch.
Why you’ll use it:
It demystifies AI with code you can build and test yourself.
15. ML From Scratch 🤖
A comprehensive, step-by-step journey to implement core machine learning algorithms from scratch, using only Python and NumPy.
Why you’ll use it:
Perfect for learning and interview prep without black-box libraries.
16. Made With ML 📦
A practical guide to building real-world machine learning applications — from model training to deployment.
Why you’ll use it:
It’s project-driven learning at its finest.
Final Thoughts
The best part? These repositories are all open-source and free. Whether you’re a student, an experienced developer, or just curious, these gems will level up your journey.
✨ Save them. Star them. Use them. Thank yourself later.
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