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 study roadmap for acing tech interviews at top companies, covering data structures, algorithms, and core CS concepts to save you from blind studying.

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

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.

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.

An open-source all-in-one backend platform that handles user login, databases, and file storage for you, so you don't need to build servers from scratch.

An AI-driven Java low-code platform that builds systems from simple text commands, offering both no-code setup and automatic code generation for rapid enterprise development.

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

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.

A local-first code analysis tool that turns your project files into an interactive relationship graph, helping you quickly understand code structure and dependencies without sending data to the cloud.

Alibaba's open-source platform for microservices and AI apps, solving service discovery and config update issues to make systems stable and efficient.

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.