When comparing Syncthing vs rsync, the Slant community recommends Syncthing for most people. In the question“What are the best personal file-syncing solutions?” Syncthing is ranked 1st while rsync is ranked 2nd. The most important reason people chose Syncthing is:
Licensed under [MIT](https://github.com/calmh/syncthing/blob/master/LICENSE).
Ranked in these QuestionsQuestion Ranking
Pro Free and open-source
Licensed under MIT.
Available for Linux, OS X and Windows and web.
Pro Reasonably active community forum
Pro Works out of the box
Requires no configuration to protect your privacy; it just works.
Pro Unofficial Android client available
An Android app was created by a third-party.
Pro Fast and bandwidth efficient
Only the changed parts of files are synced. For instance, if a long log file increases by just a few lines of text, a small diff will be sent to and saved in the archive. Rsync also compresses data in transit.
Pro Works over SSH
SSH support allows sending files securely over the network by encrypting all communcation.
Pro Free and open source
Licensed under GNU.
Pro Pre-installed on OSX and most Linux distributions
Many *nix systems bundle rsync so there's nothing to install. All you need to do is open up the terminal and start using rsync.
Con In beta
Although mostly stable, such stability is not guaranteed, and support is only community driven. Caution advised.
Con No official GUI
To use rsync, you have to know your way around the command line.