Master programming by recreating your favorite technologies from scratch.

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

😎 Awesome lists about all kinds of interesting topics

A collective list of free APIs

📚 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.

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

Curated list of project-based tutorials

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

Master the command line, in one page

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

分享 GitHub 上有趣、入门级的开源项目。Share interesting, entry-level open source projects on GitHub.

Curated coding interview preparation materials for busy software engineers

Coding articles to level up your development skills

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

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

21 Lessons, Get Started Building with Generative AI

A collection of various awesome lists for hackers, pentesters and security researchers

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.

High performance self-hosted photo and video management solution.

"The mother of all demo apps" — Exemplary fullstack Medium.com clone powered by React, Angular, Node, Django, and many more

A list of awesome beginners-friendly projects.

A curated awesome list of lists of interview questions. Feel free to contribute! 🎓

GPT4All: Run Local LLMs on Any Device. Open-source and available for commercial use.

real time face swap and one-click video deepfake with only a single image

An open-source cross-platform alternative to AirDrop

Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.