A collective list of free APIs

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

The definitive list that answers "I want to do X in Python, which tool should I use?"

Python tool for converting files and office documents to Markdown.

Stable Diffusion web UI

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

Robust Speech Recognition via Large-Scale Weak Supervision

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

Transforms complex documents like PDFs and Office docs into LLM-ready markdown/JSON for your Agentic workflows.

Drop in a screenshot and convert it to clean code (HTML/Tailwind/React/Vue)

A Simple and Universal Swarm Intelligence Engine, Predicting Anything. 简洁通用的群体智能引擎，预测万物

The official gpt4free repository | various collection of powerful language models | opus 4.6 gpt 5.3 kimi 2.5 deepseek v3.2 gemini 3

Scrapy, a fast high-level web crawling & scraping framework for Python.

openpilot is an operating system for robotics. Currently, it upgrades the driver assistance system on 300+ supported cars.

Clone a voice in 5 seconds to generate arbitrary speech in real-time

The best-benchmarked open-source AI memory system. And it's free.

Ultralytics YOLOv5 in PyTorch for object detection, instance segmentation, classification, training, and export.

Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.

The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthr…

The best ChatGPT that $100 can buy.

Deepfakes Software For All

The world's simplest facial recognition api for Python and the command line

World's first open-source, agentic video production system. 12 production pipelines, 100+ tools, 700+ agent skill and production-knowledge files. Turn your AI coding assistant into a full video pro…

Open-Source Frontier Voice AI

We write your reusable computer vision tools. 💜

Ultra-lightweight, open-source, self-hosted personal AI agent framework in Python with WebUI, tools, memory, MCP, multi-agent workflows, automation, and chat apps

🐸💬 - a deep learning toolkit for Text-to-Speech, battle-tested in research and production

Developer-first error tracking and performance monitoring

Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore: …

GFPGAN aims at developing Practical Algorithms for Real-world Face Restoration.