LibreSprite
A desktop editor for pixel images, sprite sheets, palettes, and frame-by-frame animation.
Why use it
Use LibreSprite to produce characters, tiles, and UI animation while scripting or automating exports.
Where it fits
Use art, animation, audio, levels, and narrative to make the game easy to read and its world convincing.
What to check
Its interface and workflow descend from early Aseprite code, and releases and extensions are less predictable than commercial tools.