GBGE

GBGE is a tool for creating and editing Game Boy maps.
Metatiles are a byproduct, allowing you to think and create freely. (You can still paint using metatiles if you like)

Features

Create and edit tile sets

Create and edit maps

You can also copy/paste part of maps using the selection tool.

Compute, count and optimize metatiles usage

Export to C files

Also generated header files for the tile sets and maps.

Rearrange maps

Missing features / todo

• Click to fill
• Export all tilesets at once rather than only the active one
• Limit tileset export to only used tiles
• Undo/redo