Master programming by recreating your favorite technologies from scratch.

😎 Awesome lists about all kinds of interesting topics

📚 Freely available programming books

A collective list of free APIs

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

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

Linux kernel source tree

An Open Source Machine Learning Framework for Everyone

AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.

Flutter makes it easy and fast to build beautiful apps for mobile and beyond

A collection of useful .gitignore templates

Master the command line, in one page

Stable Diffusion web UI

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.

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

🤗 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.

Langflow is a powerful tool for building and deploying AI-powered agents and workflows.

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

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

🦜🔗 The platform for reliable agents.

《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

Production-ready platform for agentic workflow development.

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

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

Virtual whiteboard for sketching hand-drawn like diagrams

Empowering everyone to build reliable and efficient software.