CSS Pattern Generator
Choose a seamless pure-CSS pattern, customize every detail, preview it at full scale, and export production-ready code or artwork.
Create your pattern
Pick a design, then tune its palette, scale, weight, angle, and intensity.
Pattern library
A curated set of useful geometric, line, dot, grid, and decorative patterns—without image files or external dependencies.
Color studio
Use a ready-made palette or create your own. The pattern color supports opacity independently from the base background.
Subtle patterns usually work best behind content. Lower the intensity when the background will sit beneath text, cards, or forms.
Fine-tune the pattern
Shared controls intelligently adjust the selected pattern. Some designs use angle or secondary color more prominently than others.
Copy or download
Paste the generated declarations into any selector, or download a complete reusable file.
About the CSS Pattern Generator
This tool creates seamless decorative backgrounds from native CSS gradients. Unlike raster background images, CSS patterns remain crisp on high-density screens, are easy to recolor, and add almost no download weight to a page.
How to use the generated pattern
Select a pattern and adjust its controls until the preview matches your design. Copy the generated class into your stylesheet, then add class="css-pattern" to any HTML element that needs the background.
Choosing a readable background
When text or controls sit directly on a pattern, keep the intensity low and maintain strong contrast. For busier patterns, place content inside a solid or translucent card as demonstrated in the preview.
Export options
- CSS: the smallest and most flexible option for websites and apps.
- Standalone HTML: a complete preview page that can be opened locally.
- SVG or PNG: useful in design tools, slides, social graphics, and software that cannot render CSS gradients.
Privacy
All pattern generation and downloads happen inside your browser. No colors, settings, code, or images are uploaded to Toolslight.