Background Auto Remover and Sprite Slicer Kit

🪄 Turn any flat-background image into game-ready sprites, without ever leaving Unity.

Whether it's an AI-generated icon sheet, a photographed prop, or a hand-drawn sprite sheet with a solid backdrop — this tool removes the background and slices the result into individual, named sprites, entirely inside the Editor.

🎯 Smart Background Removal

Samples the background color automatically and removes it with a smooth alpha ramp — no hard, jagged edges. 🛡️ Protect Enclosed Areas keeps background-colored regions that are actually part of your subject (like a light circle's interior) from being punched through by mistake.

🖌️ A Real Manual Touch-Up Pass

The automatic result isn't always perfect, so you get a full brush-painting toolkit on top of it:

⚪ Round brush or 🪄 magic-wand-style Smart flood fill

🎚️ Adjustable brush strength for soft/antialiased edges

🔼🔽 One-click Grow / Shrink / Soften Edges

↩️ Its own local Undo

🔍 Zoom/pan navigation — all live, before you commit to anything

🧩 Two Slicing Modes

Chroma-Key + Blob Detection — automatically finds however many irregular icon/badge shapes are on a sheet, no need to know the count or layout in advance.

Uniform Grid — cuts an even rows × columns layout for wall-to-wall art with no real background to key out.

⚡ Built for Real Workflows

📁 Run it on a single texture or an entire folder in one batch pass

🔒 Never overwrites your source — always writes a new file

🖼️ Output is a proper Unity multi-sprite texture with individually named Sprite sub-assets, ready to drag straight into your game

🧰 Editor-only. No external image editor, no cloud APIs, no network access, no telemetry

Perfect for indie developers cleaning up AI-generated art, prepping icon sheets, or turning any flat-background source image into a usable sprite set. 🚀

Code assisted with AI (Claude)