A collective list of free APIs

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

An opinionated list of awesome Python frameworks, libraries, software and resources.

All Algorithms implemented in Python

🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.

Command-line program to download videos from YouTube.com and other video sites

A feature-rich command-line audio/video downloader

🦜🔗 The platform for reliable agents.

Magnificent app which corrects your previous console command.

FastAPI framework, high performance, easy to learn, fast to code, ready for production

Animation engine for explanatory math videos

Linux, Jenkins, AWS, SRE, Prometheus, Docker, Python, Ansible, Git, Kubernetes, Terraform, OpenStack, SQL, NoSQL, Azure, GCP, DNS, Elastic, Network, Virtualization. DevOps Interview Questions

《动手学深度学习》：面向中文读者、能运行、可讨论。中英文版被70多个国家的500多所大学用于教学。

🌐 Make websites accessible for AI agents. Automate tasks online with ease.

The Python micro framework for building web applications.

The Python programming language

The official gpt4free repository | various collection of powerful language models | o4, o3 and deepseek r1, gpt-4.1, gemini 2.5

Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.

Interact with your documents using the power of GPT, 100% privately, no data leaks

⏬ Dumb downloader that scrapes the web

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

Rich is a Python library for rich text and beautiful formatting in the terminal.

A simple, yet elegant, HTTP library.

1 min voice data can also be used to train a good TTS model! (few shot voice cloning)

Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

Streamlit — A faster way to build and share data apps.

Making large AI models cheaper, faster and more accessible

OCR software, free and offline. 开源、免费的离线OCR软件。支持截屏/批量导入图片，PDF文档识别，排除水印/页眉页脚，扫描/生成二维码。内置多国语言库。

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The best ChatGPT that $100 can buy.