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

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

Anthropic's official skill library for Claude AI, providing ready-made task plugins for professional document handling, coding, and automation without retraining.

An AI coding assistant that lives in your terminal, helping you write code, fix bugs, and manage Git using natural language commands.

An open-source command-line AI assistant by Google that lets you chat with the Gemini model directly in your terminal, with generous free tiers, perfect for developers writing code and automating tasks.

A comprehensive cheatsheet for cyber security, collecting common attack payloads and bypass techniques for penetration testing and CTF competitions, ideal for security researchers to reference quickly.

A lightweight command-line coding agent by OpenAI that helps you write code, fix bugs, and manage files directly in your terminal without needing a browser.

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.

A graphical tool to run and fine-tune large AI models locally for free, making it easy for anyone to train AI with less memory and faster speed.

An open-source tool that converts complex documents like PDFs and Office files into AI-readable Markdown, helping you easily extract content and structure.

A collection of Markdown design specs from popular websites, helping you tune AI coding assistants to generate interfaces that match brand styles directly.

Build native-quality mobile apps using web technologies (HTML/JS), with one codebase publishing to iOS, Android, and the web.

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

This is a mobile-first touch slider library that makes web content slide smoothly like a native app, supporting various cool effects without needing other frameworks.

An automation tool for iOS and Android developers that handles repetitive tasks like building, screenshots, and releasing, making deployment as simple as pressing a button.

A cross-platform framework by Microsoft that lets you write code once in C# and deploy to both mobile and desktop devices.

A plugin that turns AI coding assistants into "senior engineers," ensuring code is more standardized and reliable.