If you don't have access to a PC, your options for "editing" are focused more on management and inventory:
"Open the inventory! Open the inventory!" he shouted at the screen.
While there is no official, built-in map editor within the Terraria mobile app
Verdict
A cross-platform web application found at terraria-map-editor.com that allows you to view and edit maps directly in a mobile browser.
A dedicated hub that allows you to download custom worlds, analyze your current maps for specific tiles or biomes, and use a player editor to modify character stats and inventory. Web-Based Editors:
Nothing hurts more than losing a 200-hour world. Mobile editors can often open “bad” files, delete the corrupted chunk, and resave.
