Tesseract Open Source OCR Engine (main repository)

ClickHouse® is a real-time analytics DBMS

aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink.

A library that provides an embeddable, persistent key-value store for fast storage.

DuckDB is an analytical in-process SQL database management system

KeePassXC is a cross-platform community-driven port of the Windows application “Keepass Password Safe”.

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)

Kodi is an award-winning free and open source home theater/media center software and entertainment hub for digital media. With its beautiful interface and powerful skinning engine, it's available f…

FoundationDB - the open source, distributed, transactional key-value store

UPX - the Ultimate Packer for eXecutables

Convert HTML to PDF using Webkit (QtWebKit)

NoSQL data store using the seastar framework, compatible with Apache Cassandra

Official Transmission BitTorrent client repository

A Multithreaded Fork of Redis

Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!

Easy to use open source fast database for search | Good alternative to Elasticsearch now | Drop-in replacement for E in the ELK soon

A library for building cross-platform native desktop applications with Node.js and CSS 🚀. React NodeGui : https://react.nodegui.org and Vue NodeGui: https://vue.nodegui.org

High performance server-side application framework

Cinder is a community-developed, free and open source library for professional-quality creative coding in C++.

qTox is a chat, voice, video, and file transfer IM client using the encrypted peer-to-peer Tox protocol.

Scribe is a server for aggregating log data streamed in real time from a large number of servers.

YDB is an open source Distributed SQL Database that combines high availability and scalability with strong consistency and ACID transactions

PowerDNS Authoritative, PowerDNS Recursor, dnsdist

Resize images and animated GIFs in Go

Advanced library for randomization, hashing and statistical analysis (devoted to chaos machines). 🔬

Modern C++ order matching engine

C library for generating audio fingerprints used by AcoustID

VLC-Qt - a simple library to connect Qt application with libVLC

Compact Language Detector 2

Distributed storage for medium and large objects with streaming support