How do I use the blob as a background in CSS?

Copy the CSS tab output. It gives you a background-image: url("data:image/svg+xml,...") string. Paste it into your CSS class to use the blob as a responsive CSS background image.

Can I animate the blob shape?

Yes. Generate two blobs with the same number of points and animate between their path d attributes using CSS animation or the GSAP MorphSVG plugin. Both paths must have the same number of commands to interpolate smoothly.

How do I use the blob as an image mask in CSS?

Apply clip-path: url(#blobId) to your element, and place the SVG with the matching and definition in your HTML. The blob will then mask any element you apply it to.

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All ToolsSVG Blob Generator

SVG Blob Generator

Generate random organic SVG blob shapes. Customize color, complexity, and randomness — copy SVG code or CSS background-image.

FREE

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Controls

Points6

Randomness4

Color / Gradient

Preview

<svg viewBox="0 0 400 400" xmlns="http://www.w3.org/2000/svg">
  
  <path d="M 200.0 64.1 C 240.3 64.4, 299.1 96.8, 319.3 131.1 C 339.6 165.5, 341.5 228.7, 321.6 270.2 C 301.7 311.6, 247.4 375.9, 200.0 379.8 C 152.6 383.8, 57.7 335.7, 37.3 294.0 C 16.8 252.2, 50.1 167.4, 77.2 129.1 Z" fill="#6366f1"/>
</svg>

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What is SVG Blob Generator?

SVG Blob Generator is a free online tool that creates smooth, organic blob shapes as SVG code. Click Generate to get a new random blob, customize the color, complexity (number of points), and randomness — then copy the SVG markup or the CSS background-image data URL to use in your project.

Organic blob shapes are widely used in modern web design as background decorations, image masks, illustration elements, and section dividers. Unlike rectangles and circles, blobs feel natural and lively, helping web pages feel approachable and creative without heavy illustrations. Hand-drawing blob paths in SVG editors like Figma or Inkscape is time-consuming, and the results are hard to iterate on.

This tool generates mathematically smooth blobs using cubic Bezier spline interpolation through randomly placed control points. Every click on Generate produces a unique, production-quality blob path. The output is a clean, minimal SVG element ready to paste directly into HTML or an img tag.

How It Works

The generator places N control points around a circle with random radial variance based on the Randomness setting. Cubic Bezier curves connect each point with automatically computed tangent handles to ensure smooth, continuous curvature. The result is converted to an SVG path element and optionally encoded as a CSS data URL.

How to Use

1
Generate a blob
Click Generate to create a new random organic blob shape.
2
Adjust complexity
Increase Points for more complex shapes, decrease for simpler, rounder blobs.
3
Set randomness
Higher randomness creates wilder, more irregular blobs. Lower values produce rounder shapes.
4
Pick a color
Choose a fill color or select a gradient preset for colorful blobs.
5
Copy the code
Switch between SVG and CSS tabs and click Copy to get the code for your project.

Who Uses This Tool

🎨

Hero Backgrounds

Place large colorful blobs behind hero text for modern, abstract landing page backgrounds.

🖼️

Image Masks

Use the SVG path as a clip-path mask to give photos an organic, non-rectangular shape.

💫

Decorative Accents

Float small blobs near headings, cards, or CTAs as playful decorative background elements.

🎭

Illustrations

Combine multiple colored blobs to build abstract character bodies, speech bubbles, or backdrops.

📱

App Backgrounds

Use blobs as animated gradient backgrounds in mobile web apps for a lively, modern feel.

🎯

Section Dividers

Place a wide blob between page sections to create a smooth, organic transition instead of straight lines.

Why Choose This Tool

Truly Random Output

Every click generates a mathematically unique blob — no two shapes are ever the same.

Smooth Cubic Bezier Curves

Control points use automatically computed tangent handles to ensure continuous, smooth curvature.

Two Export Formats

Copy raw SVG markup for HTML or a CSS data URL for stylesheet background-image usage.

Gradient Support

Add SVG linear gradient fill for colorful blobs without any external libraries.

No Design Software Needed

Get production-quality blob shapes without opening Figma, Inkscape, or Illustrator.

Instant Live Preview

See the blob update in real time as you adjust complexity, randomness, and color.

Also Try

Glassmorphism Generator CSS Animation Generator Color Converter Background Remover CSS Beautifier Neumorphism Generator

Key Benefits

Every Generate click produces a unique random blob
Control complexity (3–12 points) and randomness for different styles
Pick any fill color or use a gradient preset
Copy SVG markup or CSS background-image data URL
100% browser-based — no sign-up, no uploads

Frequently Asked Questions

Also Known As

svg blob generator online freerandom svg blob shape generatororganic svg shape generatorblob shape css generatorsvg blob background generatorfree blob svg maker onlinesmooth blob shape generatorsvg blob for web design free

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