How to Build an SVG Blob Generator
Build a tool that generates smooth, organic blob shapes as SVG paths for decorative backgrounds and design elements.
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Supports PNG, JPG, BMP, WEBP up to 5MB
Generating Randomized Blob Points
Place a set number of points evenly around a circle, then randomize each point's distance from center within a controlled range, creating an organic, irregular outline rather than a perfect circle.
- Distribute points evenly around a circle using angle increments
- Randomize each point's radius within a constrained range for organic variation
- More points create smoother, more detailed blob outlines
Smoothing the Blob with Bezier Curves
Connect the randomized points using smooth Bezier curves (C commands) rather than straight lines, calculating control points based on neighboring points to produce the soft, rounded blob aesthetic.
- Use Catmull-Rom or similar spline math to calculate smooth control points
- Bezier C commands between points create the soft, rounded look
- Add a regenerate button to produce new random blob variations instantly
Frequently Asked Questions
How many points make a good-looking blob?
Six to ten points typically produce a good balance of organic irregularity and smooth, blob-like shape — fewer points look more angular, more points look more like a rough circle.
Can I export the generated blob as a reusable SVG?
Yes — output the final path 'd' string in a text box so users can copy it directly into their own SVG markup for backgrounds or design elements.
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