The best Backup Client alternative to rsync is Duplicati, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to rsync and 16 are Backup Clients so hopefully you can find a suitable replacement. Other interesting Backup Client alternatives to rsync are Rclone, Restic, SyncBack and Déjà Dup.
Duplicati stores encrypted, incremental backups with AES-256 encryption and GPG, compatible with Windows, Linux, MacOS. Supports cloud services like OneDrive, Google Drive, and includes a built-in scheduler, auto-updater. Run backups through a web interface or command line.
Duplicati does not transfer raw files, it only transfers zips of files
Rclone ("rsync for cloud storage") is a command-line program to sync files and directories to and from different cloud storage providers.
Supports a wide variety of cloud services, easy to set up with most I've tried.
It works very well on many platforms. The only complaint is that, much like rsync, you have to familiarize yourself with a bunch of "command line" parameters to be able to use it.
Almost everyone thinks Rclone is a great rsync alternative.
restic is a program that does backups right. The design goals are: Easy, Fast, Verifiable, Secure, Efficient, Free.
SyncBack allows for backing up, synchronizing, and restoring files on Windows. It offers a free version, SyncBackSE and Pro for more features, including local networks and cloud backups. Ideal for individuals and large organizations like hospitals, ensuring data protection and recovery.
Only supports insecure remote backups, very irresponsible
Déjà Dup is a simple backup tool. It hides the complexity of doing backups the Right Way (encrypted, off-site, and regularly) and uses Restic behind the scenes.
Toucan is a small portableapp utility allowing you to synchronise, backup and secure your data with more options than the built in suite utilities. It is split up into 7 tabs, allowing you to easily find the function that you want.
DirSync Pro is a small, but powerful utility for file and folder synchronization. Java JRE 1.7 or above is needed to run DirSync Pro.
Duplicity is a software suite that provides encrypted, digitally signed, versioned, remote backup of files requiring little of the remote server.
Free and open-source differential file synchronization software for Windows, macOS, and Linux. ByteSync securely compares and transfers only file differences — no VPN, no setup, just fast, encrypted, cross-platform sync and backup.
Bacula is a set of computer programs that permit managing backup, recovery, and verification of computer data across a network of computers of different kinds.
Rustic is a backup tool that provides fast, encrypted, deduplicated backups written in Rust. It reads and writes the restic repo format described in the design document and can be used as a restic replacement in most cases.
GS RichCopy 360 is the ONLY file copy utility that utilizes its own proprietary Multi-Threading technology that uses all available logical cores in the system.
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Duplicati is not discontinued anymore. There is a 2.0 version in beta.