An SVG blob is a smooth, organic, rounded shape created using cubic Bézier curves in an SVG path. They're widely used in modern web design as background shapes, hero section decorations, and UI illustrations because they feel natural and hand-drawn.

Is the SVG blob generator free?

Yes — completely free, no account required. All blob generation happens in your browser using pure JavaScript. We never upload your data to a server.

Can I use the blobs in commercial projects?

Yes. All blobs you generate are yours to use in any personal or commercial project without attribution.

How do I use an SVG blob in CSS?

After downloading or copying the SVG code, you can reference it as an src, set it as a CSS background-image using a data URI, or inline the tag directly in your HTML. For animations, inline SVG gives the most control.

What does the Complexity slider control?

Complexity sets the number of anchor points on the blob outline. Fewer points (3–4) create simple triangular or diamond-ish blobs. More points (8–10) create complex, multi-lobed organic shapes.

What does the Irregularity slider control?

Irregularity controls how much each anchor point deviates from a perfect circle. At 0 the blob is a near-perfect ellipse; at 100 the points are distributed very unevenly for a wild, spiky-but-smooth organic shape.

Free SVG Blob Generator

Create Beautiful
Organic Blob Shapes

Generate smooth, randomized SVG blob shapes for your website backgrounds, hero sections, and UI designs. Adjust complexity, colors, and download in one click — no sign-up required.

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Infinite Randomness

Generate unique blobs instantly with a seeded random engine. Lock a seed to reproduce your favourite shape anytime.

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Custom Colors & Gradients

Pick solid fills, two-color linear gradients, or transparent blobs. Every blob is instantly ready to drop into your design.

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Export SVG or Copy Code

Download the SVG file or copy clean, minified SVG markup straight to your clipboard — no dependencies, no install.

Settings

Complexity6 points

SimpleComplex

Irregularity40%

SmoothWild

Seed

Lock to reproduce the exact same blob later.

Fill

Color 1

Color 2

Export Size400 × 400 px

SVG Code

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" width="400" height="400"><defs><linearGradient id="blob-grad-_R_3inmlb_" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" stop-color="#a855f7"/><stop offset="100%" stop-color="#ec4899"/></linearGradient></defs><path d="M 75.474 54.511 C 76.635 65.588, 82.936 73.810, 74.469 78.767 C 66.002 83.724, 33.762 88.639, 24.672 84.253 C 15.581 79.867, 19.649 62.700, 19.927 52.452 C 20.205 42.204, 18.408 29.458, 26.338 22.767 C 34.268 16.075, 59.318 7.012, 67.508 12.303 C 75.697 17.594, 74.314 43.434, 75.474 54.511 Z" fill="url(#blob-grad-_R_3inmlb_)"/></svg>

Frequently Asked Questions

Everything you need to know about SVG Blob Generator.

Create BeautifulOrganic Blob Shapes