Blob Generator

Generate random organic blob shapes for free — set the complexity and randomness, fill with a solid colour or gradient (or outline only), and copy the SVG code or download an SVG or transparent PNG. Click once for a new blob.

100% private — everything runs in your browser. Conversion happens on your device; nothing is uploaded.

Complexity (points)

Randomness

Colour

Gradient to

Outline width

Gradient Outline only

SVG code

Every blob is a smooth closed curve, so it scales cleanly in SVG. Use blobs as backgrounds behind photos, as image masks, or as decorative shapes in slides and social graphics. Free for personal and commercial use.

How to make an SVG blob

Click “Generate new blob” until you like the shape.
Adjust complexity and randomness.
Choose a colour, gradient or outline.
Copy the SVG code, or download SVG / PNG.

What you can use it for

Add soft background shapes behind photos and text
Create image masks and avatar frames
Design playful graphics for apps and landing pages
Make decorative shapes for slides and social posts

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Frequently asked questions

What is a blob shape?

A smooth, irregular rounded shape — popular in modern web design for backgrounds, illustrations and image masks.

How do I use the blob on a website?

Copy the SVG code into your HTML, or download the SVG and use it as an image or CSS background.

Can I use it as an image mask?

Yes. Use the SVG path in a clipPath, or the PNG as a CSS mask-image.

Is it free for commercial use?

Yes — every blob you generate is yours to use anywhere.