BorgBackup is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. The best open source Windows alternative is Duplicati. If that doesn't suit you, our users have ranked more than 25 alternatives to BorgBackup and 19 are open source and available for Windows so hopefully you can find a suitable replacement. Other interesting open source Windows alternatives to BorgBackup are Restic, Kopia, UrBackup and BorgWarehouse.
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.
restic is a program that does backups right. The design goals are: Easy, Fast, Verifiable, Secure, Efficient, Free.
Kopia is a fast and secure open-source backup/restore tool that manages filesystem snapshots in a remote storage. It features client-side encryption, compression, backup policies. command-line interface and more.
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.
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.
BackupPC is a high-performance, enterprise-grade system for backing up Linux, WinXX and MacOSX PCs and laptops to a server's disk. BackupPC is highly configurable and easy to install and maintain.
Burp is a network backup and restore program. It uses librsync in order to save network traffic and to save on the amount of space that is used by each backup. It also uses VSS (Volume Shadow Copy Service) to make snapshots when backing up Windows computers.
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.
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.
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It has a GUI and is super easy to use and configure for end users, whereas Borg is aimed at technical people who know their way around the CLI.