SVG Blob Generator is a free online tool that produces smooth, organic blob shapes as clean SVG path code. Click Generate for a fresh random blob, tune the color, complexity (number of control points), and randomness, then copy either the raw SVG markup or a ready-to-use CSS background-image data URL — no design software, no manual path drawing.
Organic blob shapes have become a mainstay of modern web design — behind hero headlines, as decorative accents around cards, as irregular masks for photos, and as soft section dividers between blocks of a landing page. They work because they read as friendly and hand-made in a way that rectangles, circles, and straight dividers never do, breaking up rigid grid-based layouts without the cost or inconsistency of commissioning actual illustration. The catch is that hand-drawing a smooth, closed blob path in a vector editor like Figma or Inkscape by placing and adjusting Bezier control points is slow, and getting a shape that looks organic rather than lumpy or lopsided takes real practice with curve handles.
This generator solves that by doing the curve math for you. It places a configurable number of control points evenly around a circle, then displaces each one outward or inward by a random amount scaled by your Randomness setting, and finally connects all the points with cubic Bezier curves whose tangent handles are computed automatically from each point's neighbors — which is what keeps the resulting outline smooth and continuous rather than jagged, even though the underlying points were placed randomly. The Points setting controls how many control points make up the shape: fewer points (3-5) produce simple, rounded, almost pebble-like blobs, while more points (8-12) produce more complex, wavier outlines with more distinct lobes.
Because every click of Generate re-randomizes the control points, no two blobs are ever identical, which is genuinely useful when you need several different decorative shapes across one page without them looking like copies of each other. The output comes in two forms: raw SVG markup you can paste directly into HTML (including an optional linear-gradient fill), and a CSS background-image data URL you can drop straight into a stylesheet class for use as a scalable, resolution-independent background shape with no separate image file to host.
