SVG Blob Generator
Generate organic SVG blob shapes for backgrounds and decorations
SVG Blob Generator creates an organic, rounded blob shape by placing points at randomized distances around a circle and connecting them with smooth curves — the same seed value always reproduces the exact same shape, so you can save a seed you like and recreate it later.
How to use SVG Blob Generator
- 1
Set the size, complexity, and color.
- 2
Optionally set a seed for a reproducible shape.
- 3
Click "Generate" to produce the blob.
- 4
Copy the SVG code or regenerate for a new shape.
Everything you need to know about SVG blob shapes
What is an SVG blob?
A blob is an organic, irregular shape — the soft, rounded background shapes common in modern web design, generated as scalable vector art rather than a fixed-size image, so it stays crisp at any size and loads instantly.
When you actually need this
- Decorative background shapes behind hero sections or feature cards.
- Softening a rigid, boxy layout with an organic visual accent.
- Avatar or image frames with a non-standard, blob-shaped mask.
Randomize until one looks right
There's no "correct" blob shape — generating a few random variations and picking the one that fits your layout is the normal workflow, since the appeal is in the organic irregularity itself.
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Frequently Asked Questions
Will I get a different blob every time I generate?
Yes, unless you set a specific seed value — with no seed, a random one is chosen each time; with the same seed, you'll get the exact same shape every time.
What does "complexity" control?
The number of points used to build the blob's outline, from 3 to 12 — fewer points make a more angular shape, more points make a smoother, more organic-looking blob.
What's a good use for these blobs?
Decorative background shapes, section dividers, or organic accents behind images — common in modern web design for breaking up rigid rectangular layouts.
Does this tool send anything to a server?
Yes — the request is sent to our servers to generate the SVG and the result is returned to you; nothing is stored.
Is this tool free to use?
Yes — completely free, with no signup required.