Raster Master Sprite/Map Editor for Windows 10/11 (FREE)

Supports standard PNG,GIF,PCX,LBM/ILBM Save/Open formats supported in most game libraries/engines. 

Easy Import of ready to use game assets images (Tile Maps)

It also generates raylib code  to include your raylib games without need for separate PNG image files.

For modern QB64, freebasic,freepascal, and C programmers it generates RGB/RGBA array code supported by internal/external graphics/game libraries.

For classic/retro programmers it generates Put image code that you can simply display using the PUT/PutImage command.  Supported languages compilers include: 

QuickBasic, QB64, Quick C, Turbo Pascal, freepascal, Turbo C, Turbo Basic, Power Basic, FreeBASIC, GWBASIC, BASICA, PC-BASIC

ModeX support for DOS XLIB LBM/PBM formats - Turbo C/Pascal Only

Amiga Programmers? Haven't forgotten about you either. gcc, AmigaBASIC, Amiga C, Amiga Pascal  formats also supported.

 Map Editor code can be generated for all C/Basic/Pascal compilers.

Unlimited export formats by using built-in script language. Support 8 bit computer sprite formats like C64, Atari, and colecovision

if you are looking for something simpler than Aseprite give Raster Master a try.