Sprite Sheet Generator
Pack multiple 2D game or UI icon assets into a single PNG sprite sheet.
Interactive Image Cropper Studio
Supports PNG, JPG, WebP, GIF, BMP, SVG. Processed 100% locally inside your browser.
About Sprite Sheet Generator
The 2D Game & UI Sprite Sheet Packer combines multiple animation frames and UI icons into packed texture atlases with JSON coordinate maps, CSS background offsets, and Phaser/PixiJS/Unity sprite sheet schemas.
How to Use Sprite Sheet Generator
Step 1
Drag and drop animation frame images into the packer.
Step 2
Select packing algorithm and optional Power-of-Two canvas constraint.
Step 3
Inspect the live texture atlas layout and frame preview animation.
Step 4
Download the compiled Sprite Sheet PNG and JSON coordinate map.
Practical Use Cases for Sprite Sheet Generator
2D Game Animation Frame Packing
Pack character walk cycles, attack animations, and particle frames into optimal power-of-two (POT) texture atlases for game engines.
Web UI Icon CSS Spritesheet Optimization
Combine dozens of UI icons into a single sprite image to reduce website HTTP requests down to a single network call.
Input & Output Examples
Packing 8 Character Walk Frames
8 Walk Cycle PNGs (64x64 each), Padding: 2px, Layout: Compact Bin Packing
Packed 256x128 Texture Atlas PNG + JSON coordinate dictionary with frame bounding boxes
Key Features & Performance
- ✓Packing algorithms: MaxRects Bin Packing, Basic Grid, Horizontal Strip, and Vertical Strip.
- ✓Exports: Texture Atlas PNG, JSON Hash / Array format (Phaser, Pixi.js), CSS Sprite classes, and Unity metadata.
- ✓Supports Power-of-Two (POT: 256, 512, 1024, 2048, 4096) texture sizing.
- ✓Configurable frame padding to prevent texture bleeding artifacts.
- ✓100% Client-Side generation.
- ✓1-Click Download Atlas & JSON.
Key Terminology & Definitions
Texture Atlas (Sprite Sheet)
A large image containing multiple smaller sub-images (sprites) used to optimize graphics rendering performance by minimizing draw calls.
Texture Bleeding
An artifact where adjacent sprite pixels bleed into neighboring frames during GPU filtering; prevented by adding 1–2px frame padding.