Master programming by recreating your favorite technologies from scratch.

🤯 Lobe Chat - an open-source, modern-design AI chat framework. Supports Multi AI Providers( OpenAI / Claude 4 / Gemini / Ollama / DeepSeek / Qwen), Knowledge Base (file upload / knowledge management / RAG ), Multi-Modals (Plugins/Artifacts) and Thinking. One-click FREE deployment of your private ChatGPT/ Claude / DeepSeek application.

Dify is an open-source LLM app development platform. Dify's intuitive interface combines AI workflow, RAG pipeline, agent capabilities, model management, observability features and more, letting you quickly go from prototype to production.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

21 Lessons, Get Started Building with Generative AI 🔗 https://microsoft.github.io/generative-ai-for-beginners/

Curated list of project-based tutorials

real time face swap and one-click video deepfake with only a single image

📚 Freely available programming books

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

A collective list of free APIs

#1 Locally hosted web application that allows you to perform various operations on PDF files

Collection of awesome LLM apps with AI Agents and RAG using OpenAI, Anthropic, Gemini and opensource models.

《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 代码。简体版和繁体版同步更新，English version ongoing

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

🙌 OpenHands: Code Less, Make More

An AI Hedge Fund Team

RAGFlow is an open-source RAG (Retrieval-Augmented Generation) engine based on deep document understanding.

A feature-rich command-line audio/video downloader

High performance self-hosted photo and video management solution.

🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & Scraper. Don't be shy, join here: https://discord.gg/jP8KfhDhyN

科技爱好者周刊，每周五发布

Get up and running with Llama 3.3, DeepSeek-R1, Phi-4, Gemma 3, Mistral Small 3.1 and other large language models.

📨 The ultimate social media scheduling tool, with a bunch of AI 🤖

The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.

The personal finance app for everyone