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

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.

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.

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.

A toolkit that makes web development easier, helping you quickly build front-end interfaces that look great on both phones and computers.

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 free remote desktop software with self-hosting support, letting you securely control any computer, similar to a TeamViewer alternative.

A toolkit of specialized AI agent configurations that transform tools like Claude and Cursor into domain experts like frontend developers or backend architects, saving you from creating custom prompts repeatedly.

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 web server that automatically handles HTTPS encryption certificates, simple to configure, ready to use, and more hassle-free than Nginx.

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 configuration plugin that makes Claude Code write more reliable code, preventing AI hallucinations and over-engineering.

Gatsby is a React-based web building tool that makes your site load super fast and automatically pulls content from anywhere, perfect for blogs, corporate sites, and e-commerce.

A powerful network packet sniffing tool that lets you intercept, view, and even modify all network requests from your device, essential for development debugging.

Official OWASP quick-reference guides for developers, covering best practices for common application security topics like password storage and authentication.

The world's most popular web server and reverse proxy tool, helping you handle website hosting, traffic distribution, and content caching with high performance and stability.

An open-source secret management platform that helps you centrally manage API keys and database passwords to prevent leaks and auto-sync to GitHub dev environments.

A mobile AI app by Google that lets you experience large language models and generative AI features offline, ensuring privacy and speed.