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. = Actively developed viewers =

MoreTerra

 * Original program by UberJumper, currently maintained by noroom.


 * Homepage
 * New Thread (forum isnt updated...)
 * Old Thread


 * Current Version: 1.6

Description
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

 * By mrkite


 * Homepage/thread


 * Current Version: 1.6.5

Description
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

 * By BinaryConstruct


 * Homepage
 * Current Version: 2.6.3 (released 7/3/11)

Terraria Mapper

 * By retep998
 * [LINK DOWN]


 * 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.