A catalog of useful open source projects from GitHub. Every page includes current stars, author, tags, language, license, and a description in the selected language.
JavaGuide is a Chinese guide for Java backend interview prep, computer science, databases, distributed systems, and AI application development.
Langflow is a visual builder for AI agents and workflows with Python components, API/MCP servers, and deployment-focused features.
Airbnb JavaScript Style Guide is one of the best-known JavaScript style guides, covering ES6+, React, and ESLint configurations.
Anthropic Skills is a public Agent Skills repository for Claude with a specification, templates, and example skill folders.
MarkItDown is a Microsoft/AutoGen Python utility for converting PDF, Office, HTML, images, audio, and archives into Markdown for LLM pipelines.
Dify is a production-oriented low-code platform for agentic workflows, RAG, orchestration, and LLM applications.
scrcpy is a lightweight app for mirroring and controlling an Android device from a computer without root or an app installed on the phone.
Open WebUI is a self-hosted AI interface for Ollama, OpenAI-compatible APIs, RAG, tools, users, and local LLM workflows.
youtube-dl is a historically important Python CLI for downloading videos from YouTube and other sites, and the predecessor to the modern yt-dlp branch.
Tech Interview Handbook is curated material for coding interviews, behavioral interviews, resumes, and interview process from the author of Blind 75.
Next.js is Vercel’s React framework for full-stack web apps, routing, rendering, server components, and build tooling.
System Prompts and Models of AI Tools is a controversial collection of published system prompts, internal tool notes, and AI tool model references.
