Texture Atlas Generator
Upload multiple sprites and pack them into a single, optimized texture atlas.
Features
Multi-Image Upload
Drag and drop dozens of images. Supports PNG, JPEG, WebP, GIF, and BMP.
3 Packing Algorithms
MaxRects for best efficiency, Shelf for speed, Grid for uniform layouts.
Smart Optimization
Duplicate detection, transparent trimming, edge extrusion, and multi-resolution scaling.
Instant Results
Canvas-based composition generates your atlas immediately with no server round-trip.
Total Privacy
Every image stays in your browser. No uploads, no server storage.
8+ Export Formats
Unity, Godot, Phaser, PixiJS, Spine, Starling XML, CSS Sprites, or generic JSON.
How It Works
Upload Images
Drag and drop your sprites, icons, or textures into the tool.
Configure Packing
Choose algorithm, set padding, extrusion, max size, and scaling.
Generate & Download
Preview the packed atlas, then download the PNG and metadata.
Why Use I Love Sprites?
Texture atlases are fundamental to 2D game performance. By packing sprites into a single texture, you reduce GPU draw calls, minimize memory fragmentation, and speed up rendering. I Love Sprites brings atlas generation to the browser with zero setup, complete with duplicate detection, transparent trimming, edge extrusion, and power-of-two sizing.
Frequently Asked Questions
Common questions about texture atlas generator.
A texture atlas is a large image containing many smaller images packed together efficiently. Game engines use atlases to reduce draw calls and improve rendering performance.
MaxRects (best space efficiency, fills gaps between sprites), Shelf/Basic (fast top-to-bottom), and Grid (uniform cell size for engines without data file support).
Extrusion duplicates edge pixels outward to prevent texture bleeding when sprites are rendered with linear filtering or at non-integer positions.
Many GPUs perform better with power-of-two texture dimensions (256, 512, 1024, 2048). This option rounds atlas size up for maximum compatibility.
When enabled, identical sprites are detected and packed only once. Aliases are stored in the metadata, saving texture memory.
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