Images & photos

Sprite sheet and frame manifest

Pack several images into a fixed-cell PNG atlas with coordinate JSON.

Sprite sheet and frame manifest
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Inputs and settings

Adjust the inputs, then update the preview. Sliders and selectors update directly.

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Fits 1–12 images proportionally into fixed square cells on a transparent atlas, in input order. Accepts 30 MB combined and 16 million combined decoded pixels; output is capped at 4 million pixels. Downloads PNG, actual frame-coordinate JSON and CSV, including original dimensions. Does not trim, rotate, extrude edges, optimise atlas packing or preserve animation. Supports PNG/JPEG/WebP up to 10 MB and 4 million decoded pixels per file. Browser decoding and single-frame PNG re-encoding remove source metadata/colour profiles; no files leave this device.

Keep going in images & photos.

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