When comparing rsync vs WinDataReflector File Synchronization and Backup, the Slant community recommends rsync for most people. In the question“What are the best personal file-syncing solutions?” rsync is ranked 2nd while WinDataReflector File Synchronization and Backup is ranked 29th. The most important reason people chose rsync is:
Only the changed parts of files are synced. For instance, if a long log file increases by just a few lines of text, a small diff will be sent to and saved in the archive. Rsync also compresses data in transit.
Specs
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Pros
Pro Fast and bandwidth efficient
Only the changed parts of files are synced. For instance, if a long log file increases by just a few lines of text, a small diff will be sent to and saved in the archive. Rsync also compresses data in transit.
Pro Works over SSH
SSH support allows sending files securely over the network by encrypting all communcation.
Pro Pre-installed on OSX and most Linux distributions
Many *nix systems bundle rsync so there's nothing to install. All you need to do is open up the terminal and start using rsync.
Pro Free and open source
Licensed under GNU.
Pro Portable
Portable version available.
Pro Multiple tabs for tasks
Can run multiple tasks in tabs.
Pro Syncs USB drives
Recognizes removable USB drives and automatically and automatically starts synchronization when they become available.
Pro Scheduler
Built in scheduler for synchronization and backup tasks.
Pro Real time synchronization
Detects changes as they happen and syncs them.
Pro Can synchronize to the cloud
Supports synchronizing to SFTP, OneDrive, DropBox and Google Drive.
Pro Beautiful interface
Good looking functional interface no clutter.
Pro Visual comparison
Shows differences between synchronized folders before actually syncing them and can manually change the default action for each file.
Pro Very fast synchronization
Cons
Con No official GUI
To use rsync, you have to know your way around the command line.