[Ayesh]

Not the previous poster, and I don't use Kopia, but after reading Kopia features and docs, they seem to be in par. I use Duplicati quite extensively for personal backups, and didn't really have any issues.

Duplicati has a web interface, so with a proper authentication in place, you can use it to remotely monitor and manage backups.

Duplicati doesn't keep a local cache. It uses SQLite files for file meta data, but not for the content themselves.

I like Duplicati's snapshotting mechanism. You can specify how long or how many snapshots to keep, and my anecdotal evidence is that it's archival storage-friendly. I imagine S3 and it's lifetime management rules can bring a decent and cost effective backup solution.

I'm using Google Drive 2TB plan, and I didn't see Kopia supporting Google drive out of the box.

[x0x0]

Hmm. I'm asking because I've had some trouble with Duplicati. I use it on a laptop, and it does not like being interrupted during a backup. It also doesn't fail the backup, which would be fine; instead, it gets jammed on files, particularly the large (multigb sqlite) file it generates to track state. It remains jammed, even once network is restored, and measures upload speeds at single-digit bytes per second. I end up having to force kill it after multiple abort requests fail to stop the jammed backup, and there's multiple warnings that this can corrupt data / you shouldn't kill the process...

So anyway, I'm looking for alternatives.

Duplicati also, somewhat annoyingly, nails 100% cpu for a while during backup which spins up the fans and gets my laptop very hot. I've been meaning to see if there's a simple way to modify the code to prevent this, but I'm very unfamiliar with C#.