Spent 2 weeks building a tool instead of my game.. Zero regret.
You know that moment when you procrastinate on your game by building a tool you "need"?
Yeah. That was me for the past 2 weeks.
So I'm glad to introduce my full workflow to generate sprite sheet for game !
It's a 100% free AI workflow to generate game sprites fast (no paid tools, no manual frame-by-frame) thanks to my 2 in one tools for sprite sheet generator.
Workflow:
Nano Banana → Base sprite Generate a clean pixel-art character. Keep prompts simple and consistent.
Grok → Animations Create short looping videos (idle / run / death). Think in video loops, not frames.
SpriteMaster – AI Video → Sprite Sheet
Extract frames at custom FPS
Auto-crop + smart centering
Chroma key background removal
Halo cleanup for clean transparency
Export PNG sheet / GIF / ZIP (Runs 100% client-side, files stay local) SpriteMaster – Sheet Manager
Merge multiple animations, auto-detect grids, reorganize frames, resize, and export a final ready-to-use sheet.
Why I use this pipeline:
100% free
Browser-based
Very fast iteration
Works directly for Unity / Godot / Unreal
Here's the final result, with 3 animations (run, dash, and death) :
Full AI workflow breakdown here: https://spritemaster.pages.dev/
PS: If you have any recommendations or feedback please don't hesitate, I will try to launch my website on product hunt tomorrow 🎉
Replies