When comparing Seafile vs Syncthing, the Slant community recommends Seafile for most people. In the question“What are the best self-hosted cloud storage solutions?” Seafile is ranked 1st while Syncthing is ranked 3rd. The most important reason people chose Seafile is:
Seafile community edition is licensed under GPLv2 with source code available on [GitHub](https://github.com/haiwen/seafile).
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Free and open source
Seafile community edition is licensed under GPLv2 with source code available on GitHub.
Pro Client-side encryption
All files are transferred with AES 128 bit encryption.
Pro Free and open-source
Licensed under MIT.
Pro Cross-platform
Available for Linux, OS X and Windows and web.
Pro Works out of the box
Requires no configuration to protect your privacy; it just works.
Pro Reasonably active community forum
Pro Unofficial Android client available
An Android app was created by a third-party.
Cons
Con Requires maintenance
You have to manually keep the server and clients up to date.
Con In beta
Although mostly stable, such stability is not guaranteed, and support is only community driven. Caution advised.