Guide

add

Add PNG/JPG images or try the built-in sample. Sprite sheets can be divided into equal cells using rows and columns. Split replaces the current frames after confirmation.

bg

Choose the background color with the picker, then adjust tolerance and remove it. The default removes only matching colors connected to the image border. Preview the original or undo if part of the subject disappears. Soft edges are optional; leave them off for pixel art.

Use the picker for enclosed backgrounds. Choose whole-image removal for disconnected patches of the same color.

layout

Shared trimming removes the same outer rectangle from all selected frames, preserving their relative positions. Alignment centers each visible subject or aligns its bottom; this can remove intentional bouncing. Scaling uses one shared scale and nearest-pixel sampling. Use Undo to compare.

export

Reorder frames with drag-and-drop or the arrow buttons. Set FPS and looping, then preview. For sheet/GIF export, first give every frame the same canvas size. Sheet columns = 1 makes a vertical strip; columns = frame count makes a horizontal strip. Download before closing; exported images do not contain editable project history.