Tarsnap is a secure online backup service designed specifically for UNIX-like operating systems. It emphasizes data security with a focus on encryption, ensuring that all data is encrypted on the client side before being uploaded to the cloud. Tarsnap offers features such as incremental backups and deduplication to efficiently manage storage space. It is particularly tailored for users who require high levels of security for their backups, such as system administrators and developers. Tarsnap’s command-line interface allows for easy integration into scripts and automation workflows.