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

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 the core source code of the Linux operating system, acting as the computer's brain to manage hardware and resources. It is suitable for those who want to deeply understand or modify the system layer.

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.

The core source code of Microsoft's free code editor, supporting editing, debugging, and extensions for multiple programming languages, one of the most popular tools for developers.

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

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 comprehensive Java interview and backend development guide covering basics, architecture, and AI apps to help you ace interviews and get promoted.

An open-source project collecting useful code snippets and programming articles to help you quickly solve development issues and improve skills.

Supabase is an open-source backend platform that gives you a database, authentication, and storage instantly, so you don't have to build servers from scratch.

This is a curated list of free computer science video courses from top universities globally, saving you search time and leading directly to the knowledge you want, covering basics to advanced topics.

A simple and powerful IT automation tool that helps you manage servers and deploy software in batch without installing extra software on each machine, using English-like scripts.

An open-source financial toolbox letting you get stock, macro, and crypto data via Python, directly feedable to AI assistants for analysis.

A tool to build mobile apps like websites, write code once and run on Android, iPhone, and web.

Leaflet is a lightweight open-source JavaScript library that helps you easily create interactive maps on web pages, working on both mobile and desktop without fees.

A Windows desktop utility that displays network speed, CPU, and memory usage in a floating window, with skin support.

A Rust framework allowing developers to build apps for web, desktop, and mobile with a single codebase, write once and run everywhere.