Cubiomes Viewer
An efficient graphical Minecraft seed finder and map viewer
...The tool features a map viewer that outlines the biomes of the Overworld, Nether and End dimensions, with a wide zoom range and with toggles for each supported structure type. The active game version and seed can be changed on the fly while a matching seeds list stores a working buffer of seeds for examination. The integrated seed finder is highly customizable, utilizing a hierarchical condition system that allows the user to look for features that are relative to one another. Conditions can be based on a variety of criteria, including structure placement, world spawn point, and requirements for the biomes of an area.