Folder comparison and synchronization software
Desktop Syncing Client for ownCloud
Sync Floccus' browser bookmarks to a local folder / any cloud
Tray application and Dolphin/Plasma integration for Syncthing
Sync manager that helps you sync your files across different locations
GNU Octave MQTT toolkit
Clipboard synchronization tool
To synch and encrypt all sorts of data across different sources
Audio/Video Bridging open source enabling
Crystal Dragon is a cloud server dedicated for Dragon Web Browser