OpenSprite is an Open Source Sprite editor built in QT and available for various platforms. There is a download for the Windows version, while Linux and Mac builds can be compiled from the source available on OpenSprite's git page.

OpenSprite supports X and Y-expanded sprites, as well as overlayed sprites where two sprites are stacked, with the upper one in hires mode, providing designers with 4 additional colors, along with a transparent color, to create their sprites. Conveniently, colors can be swiftly selected using keys 0..5. To streamline the editing process, most functions in OpenSprite are accessible through both buttons and shortcuts, enabling quick and efficient sprite editing. Additionally, we've incorporated a user-friendly animation editor. We've also implemented a quick save and export feature, accessible via an icon button or a shortcut, ensuring a smooth workflow.