The best open source alternative to Time Machine is Duplicati. If that doesn't suit you, our users have ranked more than 50 alternatives to Time Machine and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Time Machine are TimeShift, Restic, Déjà Dup and UrBackup.
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.
because it saves the whole backup every time, not just the changes like time machine does
TimeShift for Linux is an application that provides functionality similar to the System Restore feature in Windows and Time Machine tool in Mac OS. TimeShift protects your system by taking incremental snapshots of file system at regular intervals.
Great piece of software to take snapshots of your system and easily restore it.
restic is a program that does backups right. The design goals are: Easy, Fast, Verifiable, Secure, Efficient, Free.
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.
UrBackup is a open source client/server backup system, that through a combination of image and file backups accomplishes both data safety and a fast restoration time.
Back In Time is a simple backup tool for Linux, inspired by "FlyBack project".
Duplicacy is a new generation local and cloud backup tool that supports cross-computer deduplication. It is free for personal use and source code is available to commercial users.
An open-source backup and restore platform built for modern workloads. It offers encrypted, deduplicated, and instantly recoverable snapshots across file systems, object stores and cloud environments.
Use Time Machine to automatically back up your personal data, including apps, music, photos and documents. Having a backup allows you to recover files that you later delete or can't access.
Cronopete is a backup utility for Linux, modeled after Apple's Time Machine. It aims to simplify the creation of periodic backups.
rsnapshot is a rsync based backup utillity, providing filesystem snapshot functionality. It can take incremental snapshots of local and remote filesystems for any number of machines.
rdiff-backup backs up one directory to another, possibly over a network. The target directory ends up a copy of the source directory, but extra reverse diffs are stored in a special subdirectory of that target directory, so you can still recover files lost some time ago.
Ireland
EU
Germany
United States
France
Spain
Only backs up the changes instead of the whole file, just like Time Machine.