Blob Generator
Shape smooth organic SVG blobs online, then export in one click — as an SVG, a transparent PNG or a CSS background. Free and unlimited.
An organic blob in three moves
A blob is a soft, irregular rounded shape — the friendly organic form behind modern hero art, sticker avatars, image masks and decorative backdrops. Because it is generated as vector math, it stays perfectly smooth at any size and weighs almost nothing. Here you shape it live and recolour it with a gradient.
- 1Explore. Hit Randomize (or press Space) until a shape feels right.
- 2Refine. Dial in the complexity, contrast, smoothing and the two gradient colours.
- 3Export. Download the SVG or a transparent PNG, copy the markup, or paste the CSS background straight into your stylesheet.
Need a divider instead of a shape? The SVG wave generator runs on the same vector engine. Drop your blob over a mesh gradient backdrop, or mask it across a tiled pattern for contrast.
Good to know
SVG file, markup or CSS — which do I use?
Download SVG for a file you can drop into any design tool or <img>; Copy SVG to paste the markup inline and animate or recolour it; Copy CSS for a ready-made background-image data-URI — perfect for a decorative backdrop with no extra HTTP request.
Can I use a blob to mask an image?
Yes — that is one of the most popular uses. Take the blob's <path> from the copied SVG and reference it from a clip-path or an SVG <mask> to crop a photo into the blob shape.
Will it stay sharp on every screen?
Yes. It is pure vector, so it scales to any size — from a tiny avatar to a full-bleed hero — without a single soft pixel, and the file stays tiny.
Is it free for commercial use?
Completely. Everything you generate is yours to use freely in personal and commercial work — no sign-up, no limits and no attribution required.