Spritesheet Frame Rebuilder

Fix individual frames from spritesheet PNG images by detecting connected non-transparent regions and rebuild new spritesheets with options for scaling, padding, layout, and frame repetition.

Features

Automatically detects connected non-transparent regions as frames
Supports scaling individual frames
Pads frames to uniform size
Sorts frames by their position in the original image (optional)
Customizable output grid layout (columns & rows)
Repeat frames multiple times for animation or sprite reuse
Configurable via JSON config file and/or CLI arguments (--help for more info)

Installation

Requires Python 3.7+ and Pillow:

pip install Pillow

Credits

@koyu:

Original script