This is a guide for inventory editing on the Mobile version of Terraria. Examples for the desktop version of Terraria include various inventory editors and map. Inventory editors are primarily designed for the Desktop version of Terraria. See Guide:Mobile inventory editing for methods of Inventory editing. Guide:Mobile inventory editing (Android) Method 1: GameGuardian App a basic visual tutorial on how to use the app to edit values in game.
I remember once was an update to terraria that added a inventory editor? But then in the next update it was removed. It was a very long time. Can't save? Terrasavr is a web-based Terraria profile/inventory editor. Terrasavr works with latest version of Terraria, but can also load and save player files.