Blob Shape Generator
Create smooth, organic SVG blob shapes for backgrounds, hero sections and avatars. Tune complexity and randomness, recolour, animate the morph, then copy clean SVG, CSS or React — or download SVG / PNG.
Each bar is one anchor point’s distance from the centre — the blob’s DNA.
The free blob shape generator for organic SVG backgrounds
This blob generator creates smooth, organic SVG blob shapes — those soft, irregular “liquid” forms used everywhere in modern web design for hero backgrounds, section dividers, image masks and avatar frames. Set the complexity and randomness, pick a colour or gradient, and copy production-ready SVG, CSS or React code, or download the shape as an SVG or PNG. Free, no sign-up, no attribution.
What is a blob shape?
A blob is an organic, rounded shape with no straight edges — essentially a circle that’s been pushed and pulled at random points. In SVG it’s drawn as a single closed path made of smooth Bézier curves. Because it’s a vector, a blob stays perfectly crisp at any size and weighs only a few hundred bytes, which makes it ideal for fast, decorative web graphics.
How to use the blob generator
- Set complexity — more points create more bumps and a busier shape; fewer points keep it calm and rounded.
- Add randomness — push the irregularity up for a wilder blob, or down for a gentle, near-circular form.
- Recolour — choose a solid fill or a two-colour gradient with an adjustable angle.
- Regenerate — hit Regenerate for an endless supply of fresh shapes from the same settings.
- Animate — turn on morph to preview a living, slowly shifting blob.
- Export — copy the SVG, CSS or React snippet, or download an SVG / PNG file.
Where to use SVG blobs
- Hero backgrounds — soft colour shapes behind headlines and product shots.
- Image masks — clip photos and avatars into an organic frame.
- Section dividers — break up long pages with flowing accents.
- Decorative accents — badges, icon backdrops and sticker effects.
- Animated motion — gently morphing blobs add life without heavy assets.
- Presentations & print — export PNG for slides and documents.
SVG vs CSS blobs
For full control of the curve, use the SVG path — it gives the cleanest shape and works as a background, inline graphic or clip-path. The CSS output wraps the same path in a clip-path: path() rule so you can clip any element to the blob. Both keep the shape sharp on retina screens.
Blob generator — frequently asked questions
Is the blob generator free?
Yes — it’s completely free with no sign-up, no watermark and no attribution required. Generate and export as many blob shapes as you need.
What formats can I export?
You can copy the shape as SVG markup, as a CSS clip-path rule, or as a React component, and you can download it as an .svg or .png file.
How do I make a blob shape in CSS?
Switch the output tab to CSS. You’ll get a rule that uses clip-path: path() with the generated path, which clips any sized element into the blob. For a pure-CSS approximation you can also use an 8-value border-radius, but clip-path reproduces the exact curve.
Can I animate the blob?
Yes. Enable “Animate morph” to preview a smoothly shifting blob in the tool. For your own site you can animate between two blob paths with CSS or JavaScript to recreate the effect.
Will the SVG blob stay sharp when scaled?
Always. SVG is a vector format, so the blob renders crisply at any size — from a small avatar mask to a full-screen background — with a tiny file size.