SVG Blob Generator
Generate smooth, random organic "blob" shapes as clean SVG. Tune the complexity and contrast, fill with a solid color or a gradient, hit regenerate until you love it, then copy the SVG, the path data, or download the file.
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Organic Blob Shapes in SVG: Why and How
Soft, irregular "blob" shapes have become a signature of modern web design β framing avatars, anchoring hero sections, and adding playful background depth. Because they're built as SVG paths, blobs stay razor-sharp at any size, weigh just a few hundred bytes, and can be recolored or animated with CSS.
How a Blob Is Built
This generator places a ring of points around a center, then randomly pushes each point in or out. The "contrast" control sets how far they can move β low values give a gently wobbly circle, high values give dramatic, lumpy shapes. The points are then connected with smooth cubic BΓ©zier curves (a Catmull-Rom spline) so the outline flows continuously with no sharp corners. The "complexity" control is simply how many points there are: fewer points make calmer shapes, more points make busier ones.
Ways to Use Your Blob
- Background decoration β drop a large, low-contrast blob behind content for organic depth.
- Image masks β use the path as a
clipPathto crop a photo into a blob. - Section dividers & accents β anchor headings or cards with a soft colored shape.
- Animated morphing β generate two blobs with the same point count and animate the path between them for a gentle "liquid" effect.
Solid Fill or Gradient?
A solid fill keeps the blob crisp and lightweight β perfect for flat, minimal designs. A gradient adds dimension and energy, great for hero backgrounds and landing pages. This tool writes the gradient definition straight into the SVG so the file is fully self-contained with no external dependencies.
Tips for Clean Results
Keep complexity between 4 and 8 for natural-looking blobs; higher counts can look spiky. If you'll animate between two blobs, generate both with the same complexity so the paths have matching point counts and interpolate smoothly. And remember an SVG blob is just text β you can paste it inline, reference it as a background image, or save it as a .svg file.
Frequently Asked Questions
clipPath for masking images.d attribute between them for a smooth morphing, "liquid" effect.