Keep multiple browsers & devices in sync when building websites
Keep your application settings in sync
A generic JSON document store with sharing and synchronisation options
Database Replication, Filtered Synchronization, and Transformation
Synchronize your playback over the Internet
GNU Octave MQTT toolkit
render_async lets you include pages asynchronously with AJAX
Share and collaborate by syncing with any Git repository
Minimalistic and superstable OSC timeline/sequencer
Crossplatform files synchronization and backup portable tool.
Import SGT to iCalendars
Load CSS asynchronously
InDesign CS6 add-on to manipulate text portions as nested snippets.
Clipboard synchronization tool
To synch and encrypt all sorts of data across different sources
View SMS/MMS and Skype conversations from your Android device
Sync arbitrary directories (within firewall) with Dropbox, (Python)
the EXercise event Injection TOolkit
Synchronization of data without the fuss.