A collective list of free APIs

📚 Freely available programming books

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

All Algorithms implemented in Python

Python tool for converting files and office documents to Markdown.

🏡 Open source home automation that puts local control and privacy first.

Animation engine for explanatory math videos

A high-throughput and memory-efficient inference and serving engine for LLMs

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

The simplest, fastest repository for training/finetuning medium-sized GPTs.

Get your documents ready for gen AI

Fine-tuning & Reinforcement Learning for LLMs. 🦥 Train OpenAI gpt-oss, DeepSeek, Qwen, Llama, Gemma, TTS 2x faster with 70% less VRAM.

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

Apache Airflow - A platform to programmatically author, schedule, and monitor workflows

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

Developer-first error tracking and performance monitoring

The best ChatGPT that $100 can buy.

Ray is an AI compute engine. Ray consists of a core distributed runtime and a set of AI Libraries for accelerating ML workloads.

Run frontier AI locally.

aider is AI pair programming in your terminal

We write your reusable computer vision tools. 💜

Composable transformations of Python+NumPy programs: differentiate, vectorize, JIT to GPU/TPU, and more

DSPy: The framework for programming—not prompting—language models

Convert PDF to markdown + JSON quickly with high accuracy

You like pytorch? You like micrograd? You love tinygrad! ❤️

The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics.

🦔 PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session replay, error tracking, feature flags, experimentation, surveys, d…

Make Your Company Data Driven. Connect to any data source, easily visualize, dashboard and share your data.

🗃 Open source self-hosted web archiving. Takes URLs/browser history/bookmarks/Pocket/Pinboard/etc., saves HTML, JS, PDFs, media, and more...

Google Chromium, sans integration with Google