Last checked October 15, 2026
Syncthing
Syncthing keeps folders identical across machines you trust. It is MPL-2.0. There is no account, no share link, and no website for a client to download a folder. That is the trade.
Open sourceMPL-2.0IndividualsPrivacy-consciousDevelopers
MacWindowsLinuxAndroid
Free tier
The software is free. You do not pay a vendor.
Hosted
No hosted price recorded.
Self-host
Easy. No central server is required. An always-on device at home can act as the copy that stays online. About $0 if an existing device stays on. Unverified estimate.
Drop-in scores
Sources checked
https://ditchly.co/software/syncthing