Sprite Sheet Packer

**Sprite Sheet Packer** turns a pile of loose images into a single sprite sheet and a ready-to-use atlas, right in your browser. Nothing is uploaded anywhere.

**What you get**

- Drag and drop any number of PNG, JPG or WebP images

- Packs them into one sheet with adjustable padding and max width

- Optional power-of-two output size (what most engines like)

- Download the sheet as PNG and the atlas as JSON (name, x, y, width, height per sprite)

- Works offline once the page is loaded

**Works with**: Godot, Unity, GameMaker, Phaser, PixiJS, or anything that reads a JSON atlas.

**How to use**

1. Drop your images in

2. Pick padding and max width

3. Download the PNG and the JSON

Made as a small, focused tool. Feedback welcome in the comments.