Blob Shape Generator
Generate random organic blob shapes with adjustable complexity, colour, gradient, stroke, and animation. Export as SVG, PNG, CSS clip-path, or React component.
or press Space
How to use this tool
- 1Generate a blob
Click Generate or press spacebar to create a new random organic blob shape. Each click produces a unique shape with smooth curves.
- 2Adjust the controls
Fine-tune complexity, randomness, size, fill colour, gradient, stroke, rotation, and opacity using the sliders and colour pickers.
- 3Add animation
Toggle CSS Animation to watch the blob morph smoothly. The tool generates copyable keyframes CSS for your project.
- 4Export your blob
Copy SVG code, CSS clip-path, CSS background, or a React component. Download as .svg or .png for design tools.
What are blob shapes?
Organic design elements
Blob shapes are irregular, organic forms that add visual interest and softness to web designs. They break up rigid grid layouts and create a friendly, approachable feel that works especially well for SaaS landing pages, portfolios, and creative agencies.
How the algorithm works
The generator places N points at equal angles around a circle, then randomly varies each point’s radius within the contrast range. The points are connected using Catmull-Rom to cubic bezier conversion, producing smooth, natural-looking closed curves without sharp corners.
Use cases
Use blobs as hero backgrounds, section dividers, image masks, button shapes, card decorations, or animated accents. The SVG output is resolution-independent and file-size efficient, making blobs ideal for performance-conscious web projects.
Export formats for every workflow
SVG & React
Copy the raw SVG markup to paste directly into HTML, or grab a ready-made React component. Both outputs include gradient definitions, stroke settings, and all visual properties you configured.
CSS clip-path & background
The CSS clip-path export generates a polygon approximation you can apply to any element. The CSS background export encodes the SVG as a data URL for use in stylesheets without a separate file request.
PNG & SVG download
Download the blob as a scalable .svg vector or a raster .png image. The PNG is rendered at the exact pixel size you set, ready for presentations, mockups, or social media graphics.
Blob animation
Toggle the CSS Animation switch to see the blob morph between two organic shapes using SVG SMIL animation. The tool generates a second random blob and interpolates the path data to create a smooth, infinite morphing effect.
Copy the generated CSS keyframes code to implement the same effect in your project using the CSS d: path() property. Modern browsers support animating the d property in CSS, giving you smooth blob morphing without JavaScript. For older browsers, consider a library like flubber or GSAP MorphSVG.
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