I am happy user of Syncthing[1] myself. I currently sync 1.5 TB of data with it. And on windows the SyncTrayzor[2] is excellent. I also use android client[3] as

I am happy user of Syncthing[1] myself. I currently sync 1.5 TB of data with it. And on windows the SyncTrayzor[2] is excellent. I also use android client[3] as a one-way backup of my whole SD card from phone to my other computers. 1: https://syncthing.net/ https://syncthing.net/ 2: https://github.com/canton7/SyncTrayzor https://github.com/canton7/SyncTrayzor 3: https://play.google.com/store/apps/details?id=com.nutomic.syncthingandroid https://play.google.com/store/apps/details?id=com.nutomic.sy...