Master programming by recreating your favorite technologies from scratch.

Linux kernel source tree

Open-source Windows and Office activator featuring HWID, Ohook, TSforge, KMS38, and Online KMS activation methods, along with advanced troubleshooting.

Display and control your Android device

Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

Build cross-platform desktop apps with JavaScript, HTML, and CSS

《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 代码。简体版和繁体版同步更新，English version in translation

DigitalPlat FreeDomain: Free Domain For Everyone

21 Lessons, Get Started Building with Generative AI

FULL Augment Code, Claude Code, Cluely, CodeBuddy, Comet, Cursor, Devin AI, Junie, Kiro, Leap.new, Lovable, Manus Agent Tools, NotionAI, Orchids.app, Perplexity, Poke, Qoder, Replit, Same.dev, Trae…

🏡 Open source home automation that puts local control and privacy first.

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

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

Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS

The official gpt4free repository | various collection of powerful language models | o4, o3 and deepseek r1, gpt-4.1, gemini 2.5

JavaScript animation engine

Original Apollo 11 Guidance Computer (AGC) source code for the command and lunar modules.

The hackable text editor

📚 Collaborative cheatsheets for console commands

🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & Scraper. Don't be shy, join here: https://discord.gg/jP8KfhDhyN

Truly independent web browser

🔮 ChatGPT Desktop Application (Mac, Windows and Linux)

Autonomous coding agent right in your IDE, capable of creating/editing files, executing commands, using the browser, and more with your permission every step of the way.

Independent technology for modern publishing, memberships, subscriptions and newsletters.

Windows inside a Docker container.

Fine-tuning & Reinforcement Learning for LLMs. 🦥 Train OpenAI gpt-oss, DeepSeek-R1, Qwen3, Gemma 3, TTS 2x faster with 70% less VRAM.

Focus on prompting and generating

A refreshingly simple data-driven game engine built in Rust