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.

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

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

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.