Do you upload my GIF or sprite sheet?
No. Both building and cutting happen entirely inside your browser — your files never leave your device.
CutFast
Fast media tools in the browser.
Frequently asked questions
What is a sprite sheet and why use one?
A sprite sheet packs every animation frame into one image. Games and CSS animations load that single file and show one frame at a time, which is faster than loading many separate images.
How do I pick the right column count or frame size?
For building, leave columns empty to get a near-square sheet, or match your engine's expected layout. For cutting, enter the exact pixel size of one cell — the preview updates so you can verify before downloading.
In what order are the frames placed and cut?
Always left to right, top to bottom. Sheets are built in playback order, and cut frames are numbered the same way, so round-tripping keeps the animation order intact.