Atlas Splitter

Split sprite sheets & atlases

中文入口

Atlas Splitter is a macOS atlas slicing tool for indie game developers and 2D / pixel artists. Drag in a sprite sheet, UI composite, or tile atlas and split it into ready-to-use individual images — no account, no cloud upload. Your assets always stay on your Mac.

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The Mac App Store listing is under review. I’ll add the store link here once it’s live.

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Quick start

1. Open an atlas (drag & drop or File → Open)
2. Choose Grid Mode or Draw Mode
3. Batch export PNG / JPG / BMP — then drop them straight into your game project

Three clear paths (core workflow)

1) Grid Mode (regular layouts)

When sprites are aligned, set cell width/height, rows/columns, margins, and spacing — then split the whole sheet in one go.

2) Draw Mode (irregular layouts)

When sprites are not aligned, you can:

• Use a magic-wand style background removal + manual rectangles for fine tuning
• Click transparent or solid-color background to auto-detect lots of individual sprites
• Batch rename and organize items in the list

3) Export & edge handling