Free & Open-Source Cloud Sync (NAS) Alternatives

Vendor NAS cloud sync clients.

1. Syncthing ↗ FOSSPRIVATESELF-HOST
   P2P file sync between devices — no cloud needed.
   ●●○Medium · Peer-to-peer sync
2. Nextcloud ↗ FOSSPRIVATESELF-HOST
   Self-hosted Drive replacement with apps and storage.
   ●●●Hard · Requires self-hosting
3. Seafile ↗ FOSSPRIVATESELF-HOST
   Self-hosted file sync with strong client apps.
   ●●●Hard · Requires self-hosting