Terraria Map Editor Mobile Free ◆
If your Terraria is v1.4.4.9 (the current stable build), your map editor must support it. Using an editor built for 1.3 will instantly corrupt a 1.4 world. Always check the release date of the free tool.
While this requires a computer, it is the only free way to get full, professional editing features (chests, biome conversion, structure building) for your mobile Terraria save. Best of all, it costs $0. terraria map editor mobile free
Now that the file is on your computer, use TEdit to edit it. If your Terraria is v1