Master programming by recreating your favorite technologies from scratch.

😎 Awesome lists about all kinds of interesting topics

📚 Freely available programming books

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

A complete computer science study plan to become a software engineer.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

An opinionated list of awesome Python frameworks, libraries, software and resources.

A list of Free Software network services and web applications which can be hosted on your own servers

🎓 Path to a free self-taught education in Computer Science!

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

A book series (2 published editions) on the JS language.

Master the command line, in one page

A curated list of awesome Go frameworks, libraries and software

Get up and running with OpenAI gpt-oss, DeepSeek-R1, Gemma 3 and other models.

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.

A feature-rich command-line audio/video downloader

💯 Curated coding interview preparation materials for busy software engineers

Display and control your Android device

Coding articles to level up your development skills

Production-Grade Container Scheduling and Management

A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Virtual whiteboard for sketching hand-drawn like diagrams

Godot Engine – Multi-platform 2D and 3D game engine

An open-source remote desktop application designed for self-hosting, as an alternative to TeamViewer.

21 Lessons, Get Started Building with Generative AI

A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.

Papers from the computer science community to read and discuss.

A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.