Browser-based image workflow
Sprite Sheet and Atlas
Create a fixed-grid PNG sprite atlas with JSON coordinates.
Settings
Choose images to begin.
Privacy: This published tool does not upload your selected files. Photos remain within this browser session unless you explicitly download an export. Large images may use significant device memory.
How to use Sprite Sheet and Atlas
- Select supported source images from your device.
- Adjust the options and, for drawing tools, place annotations directly on the canvas.
- Select Process locally, inspect the output or its manifest, and download your results.
What this tool does
Organize separate sprite images in a transparent sheet and get mapping coordinates. Organize separate sprite images in a transparent sheet and get mapping coordinates.
Limitations
No auto-trim, atlas rotation, font extraction or game-engine-specific schema.
Decoded images are limited to 30 megapixels and 16,384 pixels per side; larger raster workflows can exceed browser memory even below these limits. Files must be 20 MB or smaller each and selection must be at most 120 MB. Animated inputs are rendered as a still frame; browser decoder capabilities differ. No paid APIs or server-side image upload endpoints are used.
Discover other image workflows or review our processing privacy notes.