Open-source codebase for the world's famous free coding platform, offering complete curricula from beginner to full-stack development.

A massive collection of free programming eBooks from around the world, helping you save money and time by finding learning resources in one place.

A website offering interactive learning roadmaps to help developers plan their technical growth across fields like frontend, backend, AI, and more.

A comprehensive guide to system design, helping you ace big tech interviews with included flashcards.

A curated list of Python libraries and tools covering development, data, AI, and more, helping you find reliable resources quickly.

A comprehensive list of free software that you can host on your own servers, helping you replace commercial cloud services.

This is a tool that makes building web interfaces easy, letting you write frontend code like assembling building blocks, suitable for those wanting to build dynamic websites.

This is a comprehensive collection of classic algorithms implemented in Python, suitable for students and job seekers to practice programming basics and prepare for technical interviews, with clear and runnable code.

A complete roadmap for free self-taught computer science education, gathering open course resources from top universities worldwide to help you master computer basics systematically.

Google's open-source machine learning framework that helps you easily build and deploy AI models, suitable for research and development.

A Rust-based command-line tool that lets you call AI assistants (mainly Anthropic's Claude) directly in your terminal, suitable for developers who prefer CLI workflows.

A systematic Python learning guide with 100-day daily tasks, suitable for absolute beginners, covering basic syntax to practical projects.

An open-source mobile development framework by Google that lets you build beautiful, fast apps for iOS, Android, Web, and Desktop from a single codebase.

An official collection of Git ignore rule templates by GitHub, helping you configure projects quickly and avoid committing useless files.

An open-source script tool for Windows and Office activation, offering multiple methods to help users complete system activation quickly, suitable for individuals solving authorization issues.

A tool that lets you easily run large models on your own computer, chat with AI offline, completely free and privacy-friendly.

This is a configuration system that makes AI coding assistants (like Claude Code, Cursor) smarter, safer, and more efficient, turning AI into a real productivity tool.

A Python library that lets anyone easily use top-tier AI models for text, images, and audio without training from scratch.

A plugin that adds a structured methodology to AI coding assistants, making them plan before coding to reduce errors and boost efficiency.

An open-source platform offering completely free top-level domains, allowing you to own a website address without cost, compatible with mainstream DNS providers.