bit-team/backintime
A comfortable and well-configurable graphical Frontend for incremental backups, with a command-line version also available. Modified files are transferred, while unchanged files are linked to the new folder using rsync's hard link feature, saving storage space. Restoring is straightforward via file
License & maintenance
No license stated: by default nobody may reuse the code. Ask the authors before using it in a product.
Last code push today.
