Map viewers

Map viewers are 3rd-party programs that analyze saved maps and display their contents in one easily-viewable graphic. They are useful in finding Floating Islands, rare Items, and other resources, as well as providing a total World view not otherwise attainable.

MoreTerra
Current Version: 1.10.2, compatible with Terraria 1.1.2


 * Original program by UberJumper, updated by noroom.
 * Currently maintained by Solsund


 * Homepage
 * Latest Thread
 * noroom Thread
 * UberJumper Thread

A versatile mapping program with options for marking any Ore type, Gem type, Chests containing specific items, Demon Altars, Crystal Hearts, and Shadow Orbs.

Terrafirma
Current Version: 1.9.8 compatible with Terraria 1.1.2


 * By mrkite


 * Homepage'''


 * Thread

Displays the output map in a scrollable window. View the map with textures and lighting. Inspect chests and signs with right-click. Quickly jump to spawn or NPC houses. A variety of Save options to showcase your creations.

Terraria Map Editor
Current Version: 3.1.12019.2351, compatible with Terraria 1.1.2


 * By BinaryConstruct


 * Homepage

Powerful map editor, it allows to alternate world variables.

Terraria Mapper

 * By retep998

Original mapping program, forum thread link broken -- found here:

Must be unzipped into the folder where Terraria keeps its world saves, usually Documents/My Games/Terraria/Worlds. Then click and drag the map file onto the executable.

Omnitool
Current Version: 10, compatible with Terraria 1.1.2


 * By Berserker66


 * Homepage/thread

A tool collection. One of the tools is the python world viewer.

Python World Viewer
Current Version: 1.0.6.1


 * By Berserker66


 * Homepage/thread

Similar to the other World Viewers, this creates a png map of a Terraria world. Written in Python, this viewer is compatible with Windows, Linux, and Mac operating systems. It also supports marking of points of interest, like altars, chests and crystal hearts.