libsynthesis is a library for developing custom SyncML-DS (SyncML Data Sync) client and server applications for the Linux platform (other platforms might be added later).

With libsynthesis, full-featured SyncML functionality based on Synthesis' mature and high quality SyncML DS engine can be integrated into applications. The library provides a stable binary API for both interfacing with the application and for database adaptor plugins.

The Synthesis SyncML engine supports SyncML versions 1.0, 1.1 and 1.2 including complex features like data filtering, suspend & resume, vCard/vCalendar format conversion in a way completely transparent to the user of the library.