Show HN: Convert a sprite sheet into a GIF with one click (open source)

I built a free web tool that turns sprite sheets (often used for video game character animations) into GIFs.

Upload your spritesheet image, and then use the controls to set row / column count, frame duration, and image offset margins.

The tool then converts your sprite sheet into a GIF file.

Completely free and open source (MIT license).

Github repo: https://github.com/collidingScopes/spritesheet-to-gif

Any suggestions or feedback would be much appreciated!