Blob generator

Generate an organic SVG blob from a seed — copy the markup or download the file.

Generates an organic closed blob from seeded random radii smoothed by a Catmull-Rom spline. Same seed = same shape, so keep the seed to reproduce a blob you liked.

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How to use

  1. Set size, anchor count, irregularity, and smoothness.
  2. Pick a fill color.
  3. Preview, reroll for variations, then copy or download.

What it supports

Square canvas 50–4096 px, 3–12 anchors, irregularity 0–90%, smoothness 0.5–2, #rrggbb fill. The seeded PRNG makes shapes reproducible — the same seed redraws the same blob. Single flat color only; no gradients or multi-blob compositions.

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