- Choose a Pattern — Click any of the 16 pattern types: Dots, Stripes, Grid, Diagonal, Zigzag, Triangles, Hexagons, Waves, Crosses, Diamonds, Circles, Checkerboard, Stars, Arrows, Hearts, or Leaves. The preview updates instantly.
- Set Colors — Use the Background and Foreground color pickers to customize the pattern's look. Choose contrasting or subtle combinations depending on your design.
- Adjust Settings — Fine-tune the pattern with Size (8–80px), Opacity (5–100%), and Rotation (0–360°) sliders for precise control.
- Preview — See your pattern tiled seamlessly in the large preview area. This shows exactly how it will look as a website background.
- Copy Code — Click Copy CSS to get the complete CSS code with embedded SVG data URI, or Copy SVG to get the raw SVG pattern code.
- Export — Click Export PNG to download an 800×600 PNG image of the tiled pattern.
Background Pattern Generator — Create Seamless CSS Patterns Instantly
The Background Pattern Generator is a powerful, free tool that creates beautiful seamless patterns for websites, applications, and digital designs. With 16 pattern types and full color customization, you can generate production-ready CSS code in seconds without any design software.
Every pattern is generated as pure inline SVG, embedded directly in CSS as a data URI. This means zero additional HTTP requests, instant loading, and perfect scalability at any resolution. All generation happens in your browser with no server interaction.
Key Features
- 16 Seamless Patterns — Dots, Stripes, Grid, Diagonal lines, Zigzag, Triangles, Hexagons, Waves, Crosses, Diamonds, Circles, Checkerboard, Stars, Arrows, Hearts, and Leaves. Each pattern is mathematically designed to tile perfectly without visible seams.
- Custom Colors — Full color picker for both background and foreground colors. Create high-contrast bold patterns or subtle, muted textures. The color pickers show hex values for easy reference.
- Size Control — Adjust pattern tile size from 8px (dense, small repeating units) to 80px (sparse, large geometric patterns). This controls the overall density and visual weight of the pattern.
- Opacity Control — Set foreground element opacity from 5% (barely visible texture) to 100% (solid, bold pattern). Great for creating watermark-like subtle backgrounds.
- Rotation — Rotate the entire pattern from 0° to 360° for diagonal or angled effects. Stripes become diagonal stripes, grids become diamond grids, and dots create interesting angular arrangements.
- Live Preview — See the pattern tiled in a large preview area that shows exactly how it will look as a website background. Changes update instantly as you adjust settings.
- CSS Code Output — Get complete, ready-to-use CSS code with the pattern embedded as an SVG data URI. One-click copy to clipboard. No external files or CDN dependencies needed.
- SVG Code Output — Get the raw SVG pattern code for use in design tools, Node.js applications, or custom implementations. Toggle between CSS and SVG views.
- PNG Export — Download an 800×600 tiled PNG image of your pattern for use in design mockups, presentations, or any software that accepts raster images.
- Shuffle Button — Discover new pattern combinations with random pattern type, colors, size, and opacity. Great for creative exploration and inspiration.
How the Pattern Generator Works
Each pattern is defined as an SVG element with precise geometry calculated from the tile size parameter. The SVG is encoded as a data URI and applied as a CSS background-image with background-repeat: repeat. This creates a seamless tiling effect because each SVG tile is designed with edges that align perfectly when repeated.
The foreground color is applied with the specified opacity using RGBA values. The SVG data URI approach means the entire pattern is contained in a single CSS property — no image files, no external requests, no CDN dependencies. This makes patterns extremely fast to load and easy to deploy.
Pattern Types Explained
- Dots — Classic polka dot pattern with circular elements centered in each tile.
- Stripes — Vertical bands with customizable width proportional to tile size.
- Grid — Perpendicular horizontal and vertical lines forming a mesh pattern.
- Diagonal — Lines running from corner to corner of each tile, creating a hatching effect.
- Zigzag — Connected V-shapes creating a zigzag or chevron pattern.
- Triangles — Outlined triangular shapes within each tile.
- Hexagons — Six-sided polygons for a honeycomb-like geometric pattern.
- Waves — Smooth sinusoidal curves using quadratic bezier paths.
- Crosses — Plus-sign shapes centered in each tile.
- Diamonds — Rotated square outlines creating rhombus patterns.
- Circles — Ring shapes (outlined circles) for a target or ripple effect.
- Checkerboard — Alternating filled squares like a chess board.
- Stars — Five-pointed star shapes calculated with trigonometric precision.
- Arrows — Directional chevron shapes for movement or flow indication.
- Hearts — Heart shapes created with bezier curves for decorative patterns.
- Leaves — Organic leaf shapes with center veins for nature-themed designs.
Use Cases
- Website Backgrounds — Add subtle texture or bold patterns to hero sections, sidebars, footers, and page backgrounds.
- UI Design — Create patterns for empty states, loading screens, and placeholder areas in web applications.
- Social Media — Generate eye-catching patterned backgrounds for social media posts, stories, and profile banners.
- Print Design — Export patterns as PNG for use in print materials, business cards, and marketing collateral.
- Presentation Slides — Add professional patterned backgrounds to slide decks and keynote presentations.
- Email Templates — Use inline CSS patterns in HTML emails for visual interest without heavy image files.
Privacy & Security
The Background Pattern Generator creates all patterns using pure JavaScript and SVG in your browser. No data leaves your device, no patterns are stored on servers, no account required. The tool works completely offline once loaded.