Sprite Sheet Generator - Combine PNGs into One Sprite + CSS
Upload multiple PNG images and generate a single spritesheet PNG plus a CSS mapping. Sprite sheets reduce the number of HTTP requests and can improve performance for icon-heavy interfaces.
Why Use a Sprite Sheet?
- Fewer Requests: One image file instead of many icons
- Consistent Styling: CSS classes map icons to correct positions
- Great for UI Icons: Buttons, menus, badges, and small assets
- Server-side Packing: Reliable layout and output
Common Use Cases
🧭 Navigation Icons
Bundle menu and toolbar icons for faster rendering.
🎮 UI Sprites
Combine small sprites for games or interactive UIs.
🧩 Component Libraries
Ship a single assets file plus predictable CSS classes.
📦 Landing Pages
Reduce request overhead for icon-heavy pages.
How to Use This Tool
- Upload PNG files: Select multiple PNGs (ideally similar size).
- Generate: Create a spritesheet and CSS mapping.
- Download: Save the PNG and CSS files.
- Use in CSS: Apply the generated CSS classes to elements.
Field guide: The CSS file contains class names with background-position values for each sprite.
Sprite Sheet Generator Tool
Upload multiple PNGs. The tool returns a spritesheet PNG and a CSS mapping.
Using the Generated CSS
The CSS file usually defines a base class for the spritesheet and additional classes per icon. Use them on a span or i element.
Related Tools
- Favicon Generator - Generate site icons
- Image Converter - Convert sources to PNG