T-Backup is a simple tool that at the press of a button backs up your Terraria Worlds, Players, or both.
It is written in C# by Sam Poirier (darthmorf) and is currently v3.0 .
To install it is very simple, simply download the exe and run it.
If you wish to view the source code, take a look at the github page.
Please Note - This is a windows only program.