Bvckup 2 is described as 'Simple fast backup for Windows. At a glance - small and very lean, very fast delta copier, excellent user interface, device tracking, shadow copying, move/rename detection, run-as-a-service mode, robust support for multi-million item backups with terabytes of data, intelligent' and is a popular File Sync tool in the backup & sync category. There are more than 25 alternatives to Bvckup 2 for a variety of platforms, including Windows, Mac, Linux, Android and BSD apps. The best Bvckup 2 alternative is FreeFileSync, which is both free and Open Source. Other great apps like Bvckup 2 are rsync, Acronis True Image, Restic and SyncBack.
Fast Real-Time Backup. Continuously monitor folders for changes and update their backup copies immediately after the originals are modified. Or run backups at fixed time intervals. Specify an exact set of files to be backed up using simple and flexible folder and file filtering...
Karen's Replicator copies selected files from one drive/folder to another. Source and Destination folders can reside anywhere on your network.
Rebel Backup lets you make encrypted backups of your important files offsite to Dropbox or Google Drive. You control what and how often is backed up, and the encryption happens locally on your computer.
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.
A graphical interface for the Rsync engine that will synchronise files between two computers either locally or over the internet. The beauty of Rsync is that it only transfers the exact part of a file that has changed (differential synchronisation), saving bandwidth and time.
Let's say you have to backup one file that is 500 MB every night. A normal file copy would copy the entire file even if a few bytes have changed. DeltaCopy, on the other hand, would only copy the part of file that has actually been modified.
Back up files and folders so that you can configure the backup process once and then forget about it - by saving settings for a scheduled backup. Get flexibility in backing up different folders in different ways. Keep multiple backup versions.
Lsyncd watches a local directory trees event monitor interface (inotify or fsevents). It aggregates and combines events for a few seconds and then spawns one (or more) process(es) to synchronize the changes. By default this is rsync.
Leo Backup is a program designed for simple backup needs and aimed to keep your data in different locations automatically, applying the compression, encryption and reporting options.
VRangeSync is a freeware File synchronization for Unix/Linux and Microsoft Windows. It is a command-line utility which copy and move data from one location to another on a storage device. It is a data migration, cloner, file replication and synchronization software.
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Similar functionality if a bit more verbose and overly tech-y