About Blob Generator
A 'blob' shape is a handful of points scattered around a circle, each pushed slightly in or out from the centre, connected by a smooth curve rather than straight lines — that last part is what separates an organic-looking blob from a jagged random polygon. The curve here is a Catmull-Rom spline, converted to the cubic Bézier segments SVG actually understands, run through every point in sequence and back to the start.
Point count controls how much detail the outline has — three or four points make a simple, soft lozenge shape; ten or twelve add enough anchor points for genuinely irregular, lobed outlines. Irregularity controls how far each point is allowed to wander from a perfect circle; at 0% every point sits at exactly the same radius and the result is a perfect circle regardless of point count.
The randomness behind a shape is seeded, not fresh every time — the same seed, point count and irregularity always reproduce the identical outline. That is deliberate: a blob is usually a starting point someone iterates on or drops into a design file, and being able to get back to a shape you liked (or hand a teammate the exact settings) is more useful than the shuffle button always being a surprise.
How to generate a blob
Adjust points and irregularity
More points add detail; higher irregularity makes a less circular, more organic outline.
Shuffle for a new shape
Or type in a seed you want to return to.
Choose a fill
A solid colour, or a gradient between two.
Download the SVG
A complete, standalone file — ready to drop into a design tool or a webpage.