InvEdit for Terraria.
This is an easy inventory editing tool for Terraria. It works in both single player and multi-player and is very easy to use. I also would like to say that i take NO credit for this at all. The creator wants to stay anonymous. To use it, click on the folder in the top left corner and select the characters inventory that you want to edit. You can use it to heal yourself and restore mana. To edit inventory go to the inventory tab. Click the + sign and your current inventory should pop down. Next click an inventory spot and choose what you want to replace it with. Then click save. Then click the save icon at the top and close InvEdit. Open Terraria and enjoy =)