bmp2cgb

Tilemap Studio

A tilemap editor for Game Boy, Color, Advance, DS, and SNES projects. Written in C++ with FLTK.

Superfamiconv

Flexible and composable tile graphics converter supporting Super Nintendo, Game Boy, Game Boy Color, Game Boy Advance, Mega Drive, Master System, Game Gear, PC Engine and WonderSwan formats.

Game Boy Tile Data Generator

Gameboy Tile Data Generator

Tilemap GB

Tilemap GB - Console App - AND - GIMP plugin for importing & exporting Game Boy game tilemaps and tilesets (as bitmap images or .GBM/.GBR files. Related tools: GBTD, GBMB, GBDK, Zal0-ZGB)