Cross platform (lin/win/mac) geographical information system (GIS)
An experimental Symbian OS emulator
Synchronous multiroom audio player
An open-source cross-platform alternative to AirDrop
Microsoft project for cloud-based client-server communication
Speech-to-text, text-to-speech, and speaker recognition
C++ Qt ORM (Object Relational Mapping) and ODM library
websocket and http client and server library, with TLS support
Open-source engine for Heroes of Might and Magic III
Blynk library for embedded hardware
Cross-platform C++ libraries for building network applications
Vircadia open source metaverse platform
Fast Binary Encoding is fast and universal serialization solution
Web Framework built on top of Qt, using the approach of Catalyst
High-speed, 3D-friendly, TightVNC-compatible remote desktop software
A lightweight and easy-to-use password manager
3D Without Boundaries
FIDO® Certified StrongKey FIDO Server (SKFS)
Open Source Monitoring System for performance and availability.
A powerful, cross platform, SQL database system
Remote control. Support VNC, RDP, Terminal, SSH, TELNET etc
A cross platform debugger for serial port/Bluetooth/TCP/UDP
ERP Server
Wikipedia offline & more
SCADA HMI for substations, IoT and automation applications