An Open Source Machine Learning Framework for Everyone

Tesseract Open Source OCR Engine (main repository)

Caffe: a fast open framework for deep learning.

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

DuckDB is an analytical in-process SQL database management system

This is the official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

Seamless operability between C++11 and Python

Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

Convert HTML to PDF using Webkit (QtWebKit)

Dear PyGui: A fast and powerful Graphical User Interface Toolkit for Python with minimal dependencies

Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.

QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS)

A General-purpose Task-parallel Programming System using Modern C++

F´ - A flight software and embedded systems framework

cuDF - GPU DataFrame Library

🌈 Node.js bindings to libsass

RetDec is a retargetable machine-code decompiler based on LLVM.

The Fast Cross-Platform Package Manager

Mumble is an open-source, low-latency, high quality voice chat software.

mlpack: a fast, header-only C++ machine learning library

Python for Windows (pywin32) Extensions

rTorrent BitTorrent client

Mapnik is an open source toolkit for developing mapping applications

CloudCompare main repository

C++ tensors with broadcasting and lazy computing

Ahead of Time compiler for numeric kernels

Desktop client for Matrix using Qt and C++20.

Open source IFC library and geometry engine

QDirStat - Qt-based directory statistics (KDirStat without any KDE - from the original KDirStat author)