Duplicity is described as 'Software suite that provides encrypted, digitally signed, versioned, remote backup of files requiring little of the remote server' and is a Backup Client in the backup & sync category. There are more than 25 alternatives to Duplicity for a variety of platforms, including Linux, Mac, Windows, BSD and Self-Hosted apps. The best Duplicity alternative is Duplicati, which is both free and Open Source. Other great apps like Duplicity are rsync, Acronis True Image, BorgBackup and CrashPlan.
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.
Utility for Unix file and directory synchronization using delta encoding for efficient transfer, supports compression, incremental backup, remote operation via SSH, customizable filters, permission and timestamp preservation, and daemon mode on TCP 873.
Full image and file backups, disk cloning, and partition management across Windows, macOS, iOS, and Android with ransomware protection, cloud storage, fast recovery, web-based remote management, and mobile device support for flexible, secure data protection.
BorgBackup (short: Borg) is a deduplicating backup program. Optionally, it supports compression and authenticated encryption.
Provides continuous, automated cloud backup and secure, scalable recovery for business servers, endpoints, Microsoft 365, and Google Workspace, protecting critical data from deletion, ransomware, and failure with compliance, threat detection, and easy management features.
Time Machine is the breakthrough automatic backup that’s built right into Mac OS X. It keeps an up-to-date copy of everything on your Mac — digital photos, music, movies, TV shows, and documents. Now, if you ever have the need, you can easily go back in time to recover anything.
Automatic set-and-forget backup for iCloud Photos and Drive with manual, scheduled, full, or incremental syncing to external drives, NAS, or third-party clouds, preventing data loss, enabling file recovery, offloading files from your Mac, and requiring no subscription.
Back In Time is a simple backup tool for Linux, inspired by "FlyBack project".
A cross-platform folder backup software, based off a forked version of kopia. Since it uses kopia, you get end to end encryption with your own password.
Vorta is a backup client for macOS and Linux desktops. It integrates the mighty Borg Backup with your favorite desktop environment to protect your data from disk failure, ransomware and theft.
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Duplicity's whole thing is that it can store encrypted backups securely on untrusted storage. RSync does not do that.