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SyncthingGoodSync
Free

Free software; the Syncthing Foundation is funded by donations. There is no storage cost…

 Paid

A paid licence is required beyond a restricted free tier.

Windows, macOS, Linux, Command line, Self-hosted Windows, macOS, Linux, Android, iOS
  • No central server: none of your data is stored anywhere except on your own computers
  • All traffic is TLS encrypted with perfect forward secrecy, and every device is authenticated by certificate
  • Block-level transfer with versioning across a very wide set of back ends
  • Jobs can trigger when a drive or device is connected
  • The official Android app was archived in December 2024; Android users rely on a community fork
  • Both devices must be online at the same time for changes to move
  • Paid licence per user, with a restricted free tier
  • Closed source
Downloadable app, Self-hosted Downloadable app
Open source Closed source
License: MPL-2.0 License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 20, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.