kup

What it does

Kup helps people keep up to date backups of personal files. The primary supported store is a plugged in USB hard drive, though saving to a server over a network is also possible. When a backup destination becomes available, Kup can start copying recent changes automatically, and it can ask before copying anything so it does not disturb the user needlessly.

Backup schemes

Two schemes are supported. A synchronized folder scheme keeps the backup identical to the computer using rsync, deleting backed up files you have deleted locally. An incremental archive scheme keeps older versions of files using bup, storing only changed parts so big file backups stay cheap while every backup remains a complete version accessible through a bup archive browser.

Building and licensing

Kup consists of a configuration module in system settings, a background monitor that schedules plans, a kioworker for opening bup archives in any KDE app, and a file browser for restores. It requires bup or rsync installed, and compiles from source with CMake and KDE libraries. The repository metadata carries no explicit software license tag, and the snapshot shows 31 stars and 8 forks.

Editorial conclusion

The project records 31 stars and 8 forks as of August 2026 and carries no explicit software license tag in its metadata. It is a KDE Plasma backup scheduler built around rsync and bup for local and network destinations.