PNG Sprite Sheet Re-Grid Editor

1. Load PNG

No image loaded.

2. Source grid

Rows

Columns

Row animation names

Name row 1 as idle, walk, attack, etc. JSON frames become idle_001, idle_002...

Duplicate finder

Apply a grid, then run duplicate finder.

3. Output layout

Output columns

Output rows

Export never trims, crops, rescales, or removes whitespace inside a sprite. It copies whole grid cells exactly.

4. Move sprites

Click a source cell, then click an output cell.

Export

Export compacts placed full cells into the smallest whole-cell grid. No sprite cell is trimmed or rescaled.

How this works

On load, the app tries to detect rows/columns by finding full transparent or white separator lines. If that guess is wrong, enter rows/columns yourself and Apply grid.

Duplicate detection is exact: every pixel in the full grid cell must match. No sensitivity slider, no trimming, no fuzzy matching.

The JSON gives animation frame names from row labels, original source positions, packed positions, and duplicate mappings.

PNG Sprite Sheet Re-Grid Editor

Source sheet

Output sheet