An Open Source Machine Learning Framework for Everyone

Bitcoin Core integration/staging tree

Open Source Computer Vision Library

Tesseract Open Source OCR Engine (main repository)

The Magic Mask for Android

Truly independent web browser

Caffe: a fast open framework for deep learning.

OpenPose: Real-time multi-person keypoint detection library for body, face, hands, and foot estimation

Scriptable Headless Browser

DuckDB is an analytical in-process SQL database management system

Productive, portable, and performant GPU programming in Python.

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

Emscripten: An LLVM-to-WebAssembly Compiler

Notepad++ official repository

Official home of the DB Browser for SQLite (DB4S) project. Previously known as "SQLite Database Browser" and "Database Browser for SQLite". Website at:

A modern formatting library

A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch)

Convert HTML to PDF using Webkit (QtWebKit)

An open source re-implementation of RollerCoaster Tycoon 2 🎢

A C++ header-only HTTP/HTTPS server and client library

Audio Editor

MuseScore is an open source and free music notation software. For support, contribution, bug reports, visit MuseScore.org. Fork and make pull requests!

A free and strong UCI chess engine

software version control visualization

cross-platform (Qt), open-source (GPLv3) video editor

Luanti (formerly Minetest) is an open source voxel game-creation platform with easy modding and game creation

The Z3 Theorem Prover

Repository for OpenCV's extra modules

Monero: the secure, private, untraceable cryptocurrency