T-Backup is a Terraria backup program, written in C#. For more information visit the thread on the official forums: http://forums.terraria.org/index.php?threads/t-backup-backup-your-worlds-and-players-with-ease.33697/
It's written by Sam Poirier AKA darthmorf. If you enjoy it, I'd love to hear from you! Please also post any bugs you encounter on that thread. Thanks.
To use, simply download the latest executable and run it.
Current version: 1.0