Intake · examination · findings · prescription
Make AI animations game-ready.
AI can now generate a character animation in minutes — but the raw output rarely survives contact with a game engine. SpriteDoctor runs it through a frame-by-frame health check and shows you exactly what’s wrong: frozen stretches, clipped limbs, camera drift, a loop that pops. Then it walks you through the fixes you approve — cutout, stabilisation, loop windows — and hands you a re-generation prescription for anything that can’t be repaired from the pixels. Confirm the result, export a game-ready sprite sheet straight into your engine.
kie_a1_walk: the clip as generated, the health report this page really produces for it (captured from this build, not a mockup), and the transparent frames you get after confirming the cutout. Run it on your own clip in Sprite Studio.How a finding is written down
Three marks, and only three. They are the difference between what we measured, what we suspect, and what we will not pretend to fix.
- Measured, within toleranceThe reading and its number are printed beside it. Nothing to do.
- SuspectedThe instrument saw something. It stays a suspicion until you look at the frames — and nothing touches your clip until you tick it in the fix plan.
- Not fixable hereThe problem is in the source, not the pixels. You get a re-generation prescription in plain English, ready to paste into your generator.
Tools
Sprite Studio — upload a clip, get a frame-by-frame health report, confirm the fixes you want, export a sprite sheet. Below it, six single-purpose instruments. All free, all entirely in your browser.
Video to Sprite Sheet Converter
Capture a video’s real frames and pack them into a grid PNG.
SD-12Green Screen Remover
Key out a green or magenta backdrop from a video, frame by frame.
SD-13Sprite Sheet Splitter
Cut an existing sprite sheet image into individual frame PNGs.
SD-14Animation Loop Checker
Measure whether a clip loops cleanly and find a better loop window.
SD-15Video FPS Checker
See how many frames per second of a video are actually unique.
SD-16Sprite Sheet Maker
Pack a folder of images into one grid sprite sheet, no scaling.