Linux Softwares to Delta Backup

BackupPC is a robust and free disk-to-disk backup software application designed for enterprise-level use, featuring a web-based interface. It supports a wide range of client operating systems via standard protocols, eliminating the need for client-side software installation. Ideal for Linux/UNIX environments.

DirSync Pro is an open-source, cross-platform file synchronization and backup utility designed for Windows, Linux, macOS, and other Java-supported operating systems. It offers robust features for managing backups, synchronizing folders, and performing incremental or mirror backups with options for encryption and scheduling.

Syncovery is a robust file synchronization, backup, and cloud backup software designed for both individuals and businesses. It offers advanced features including versioning, encryption, and support for various cloud storage providers, ensuring flexible and secure data management.

rsync is a versatile command-line utility designed for efficient file transfer and synchronization. It specializes in incremental transfers, copying only the parts of files that have changed since the last synchronization, making it highly efficient for backups and mirroring.

Areca Backup is a free, open-source file backup tool developed in Java. It provides powerful backup capabilities including incremental, differential, and delta backups, with support for encryption, compression, and various storage destinations like FTP and local drives. Designed for personal use, it offers flexibility through backup profiles and command-line access.