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

An Open Source Machine Learning Framework for Everyone

Tensors and Dynamic neural networks in Python with strong GPU acceleration

Animation engine for explanatory math videos

Free and Open Source, Distributed, RESTful Search Engine

The HTML Presentation Framework

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many mo…

Tesseract Open Source OCR Engine (main repository)

Apache Superset is a Data Visualization and Data Exploration Platform

Run your GitHub Actions locally 🚀

A cross-platform, OpenGL terminal emulator.

Ruby on Rails

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

Google core libraries for Java

The Julia Programming Language

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

The all-in-one Desktop & Docker AI application with built-in RAG, AI agents, No-code agent builder, MCP compatibility, and more.

The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++

Apache Spark - A unified analytics engine for large-scale data processing

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

DeepSpeed is a deep learning optimization library that makes distributed training and inference easy, efficient, and effective.

LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.

A toolkit for developing and comparing reinforcement learning algorithms.

Netty project - an event-driven asynchronous network application framework

An open-source C++ library developed and used at Facebook.

Image Super-Resolution for Anime-Style Art

Scalable, Portable and Distributed Gradient Boosting (GBDT, GBRT or GBM) Library, for Python, R, Java, Scala, C++ and more. Runs on single machine, Hadoop, Spark, Dask, Flink and DataFlow

Cloud-native high-performance edge/middle/service proxy

A code-completion engine for Vim

A modular graph-based Retrieval-Augmented Generation (RAG) system