Seamless Vectors · Sub-1KB Payloads · CSS Data URI

SVG Pattern Generator

Craft crisp, infinitely repeatable background patterns with mathematical precision. Export lightweight inline SVG or compact CSS data URIs ready for production websites.

Presets:

Pattern Geometry

Colors & Contrast

Background Color:

#0f172a

Pattern Color:

#38bdf8

Tile Spacing / Scale32px

Stroke Width / Dot Radius2px

Pattern Opacity50%

Live Preview

Seamless Vector SVG

Zero pixelation at any display scale or DPI. Infinitely repeatable without raster artifacts.

/* CSS Seamless SVG Pattern */
background-color: #0f172a;
background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2232%22%20height%3D%2232%22%3E%3Crect%20width%3D%22100%25%22%20height%3D%22100%25%22%20fill%3D%22%230f172a%22%20%2F%3E%3Ccircle%20cx%3D%2216%22%20cy%3D%2216%22%20r%3D%222%22%20fill%3D%22%2338bdf8%22%20fill-opacity%3D%220.5%22%20%2F%3E%3C%2Fsvg%3E");

Vector SVG Patterns vs Heavy Bitmap Backgrounds

1Why Scalable Vectors Outperform PNG/JPEG Assets

Sub-1KB payload footprint: An uncompressed raster PNG pattern tile often weighs 40KB to 200KB. In contrast, an optimized SVG pattern definition requires under 600 bytes of text.
Infinite DPI resolution: Bitmaps blur or pixelate when viewed on 4K, 5K, or mobile Retina screens. Vector SVG elements render with laser sharpness at any zoom level or screen pixel density.
Zero additional HTTP requests: Embedding the pattern directly in your CSS via a UTF-8 data URI eliminates an extra round-trip HTTP request, cutting First Contentful Paint (FCP) latency.

2Data URI Encoding & Browser Rendering Best Practices

When using SVG in CSS background-image, prefer URL percent-encoding over Base64 encoding. Base64 adds an unnecessary 33% byte size overhead and makes the code unreadable in CSS stylesheets.

• Percent-encode special characters like # to %23

• Always define explicit xmlns="http://www.w3.org/2000/svg"

• Keep opacity restrained (10% to 40%) so foreground text remains readable

Subtle repeating patterns provide depth and visual texture to hero sections, dashboard cards, and navigation footers without distracting from primary interactions.