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Generate SVG Waves & Blobs

Create customizable SVG wave dividers and organic blob shapes for your web projects. Multi-layer waves, smooth blobs, export as SVG, PNG, CSS, or React.

The SVG Wave & Blob Generator lets you design multi-layer wave section dividers and organic blob shapes entirely in your browser. Customize colors, amplitude, frequency, opacity, and complexity with real-time preview on light or dark backgrounds. Export as raw SVG code, CSS background-image, React component, or download as SVG and PNG files. No server upload; everything stays private on your device.

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Tutorial

How to use

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Choose wave or blob mode

Select Waves to build layered section dividers or Blobs to create organic shapes for backgrounds and decorations.

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Customize your design

Adjust colors, amplitude, frequency, and opacity for waves; or color, size, points, and complexity for blobs. Click Randomize for instant variations.

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Export in your preferred format

Copy the raw SVG code, CSS background-image value, or React component snippet. Download as SVG or high-resolution PNG file.

Guide

Complete Guide to SVG Waves and Blobs

Why SVG for Web Decorations

SVG is the ideal format for web decorations because it scales perfectly to any screen size without pixelation. Unlike raster images, SVG files are tiny, often under 2KB for a complex wave shape. They can be styled with CSS, animated with JavaScript, and embedded directly in HTML, eliminating extra HTTP requests.

Multi-Layer Wave Design Principles

Effective wave dividers use multiple layers with decreasing opacity to create depth. Place darker, more opaque waves in front and lighter, more transparent ones behind. Vary the frequency slightly between layers so waves do not overlap identically. This parallax-like layering simulates natural water or terrain.

Using Simplex Noise for Organic Shapes

Simplex noise produces smooth, natural-looking randomness that is ideal for generating organic shapes. Unlike Math.random, simplex noise is continuous: nearby input values produce nearby output values. This continuity creates the flowing curves in waves and the rounded irregularity in blobs.

Integrating SVGs into Modern Frameworks

In React, inline SVGs as JSX components give full control over styling and animation. In Tailwind projects, use the SVG as a CSS background-image data URI applied via arbitrary values. For static sites, embed the SVG directly in HTML. All approaches keep the decoration lightweight and framework-native.

Sources

Examples

Worked Examples

Example: Three-Layer Hero Wave Divider

Goal: Create a smooth, layered wave transition from a dark hero section to a white content area.

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Step 1: Set mode to Waves. Set width to 1440 and height to 320.

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Step 2: Configure Layer 1 with a dark indigo color (#4338ca), amplitude 50, frequency 3, opacity 0.9.

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Step 3: Add Layer 2 with medium purple (#7c3aed), amplitude 60, frequency 4, opacity 0.6.

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Step 4: Add Layer 3 with light violet (#a78bfa), amplitude 45, frequency 5, opacity 0.35.

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Step 5: Toggle to dark background to preview how it looks on a dark hero section.

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Step 6: Click Copy SVG and paste it between your hero and content sections.

Result: A rich, three-layer wave divider that creates a smooth gradient-like transition with depth and movement.

Example: Organic Blob for a Feature Card Background

Goal: Create a soft, colorful blob shape to place behind a feature card.

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Step 1: Switch to Blobs mode. Set size to 400.

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Step 2: Choose a brand color like coral (#f97316).

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Step 3: Set points to 8 and complexity to 2.5 for a smooth organic shape.

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Step 4: Click Randomize until you find a shape you like.

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Step 5: Click Copy React to get a ready-to-use React component.

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Step 6: Position the component behind your card with absolute positioning and a low z-index.

Result: A unique, organic blob shape that adds visual interest behind a feature card without distracting from the content.

Use Cases

Use cases

Hero Section Wave Dividers for Landing Pages

“Landing pages use wave dividers to create smooth transitions between hero sections and content areas. Multi-layer waves with varying opacity produce depth and visual movement that flat horizontal rules cannot achieve, guiding the visitor's eye naturally downward.”

Organic Blob Backgrounds for SaaS Dashboards

“SaaS applications use colorful blob shapes behind feature cards and pricing sections to soften grid-heavy layouts. Blobs with matching brand colors add visual interest without distracting from the primary content, creating a modern and approachable aesthetic.”

SVG Decorations for Mobile App Onboarding Screens

“Mobile onboarding flows use lightweight SVG blobs and waves as background decorations that scale perfectly across screen sizes. Because SVGs are resolution-independent and tiny in file size, they load instantly and look sharp on Retina displays without any pixelation.”

Frequently Asked Questions

?What is an SVG wave divider?

An SVG wave divider is a scalable vector graphic used to separate page sections with a curved, wave-like edge instead of a straight line. It adds visual depth and smooth transitions between content areas.

?Can I stack multiple wave layers?

Yes, you can add up to 5 wave layers, each with independent color, opacity, amplitude, and frequency settings. Layering waves creates rich, dynamic section transitions.

?What export formats are available?

You can copy raw SVG code, copy as a CSS background-image data URI, copy as a React component, or download as SVG and PNG files. PNG exports are rendered at 2x resolution for crisp display.

?How do blobs differ from waves?

Waves generate horizontal section dividers with layered paths across a wide viewport. Blobs create closed organic shapes using radial points with noise-varied radii, useful as standalone decorative elements.

?Is this tool completely free?

Yes, this tool is 100% free with no usage limits, no watermarks, no registration, and no premium tiers. Use it as many times as you need.

?Are my designs uploaded to any server?

No, all SVG generation runs entirely in your browser using client-side JavaScript. No data leaves your device. Your designs are completely private.

?Can I use the generated SVGs commercially?

Yes, all SVGs you generate with this tool are yours to use however you want, including in commercial projects, client work, and products. No attribution required.

?What algorithm generates the wave and blob shapes?

Waves use simplex noise (noise2D) to calculate Y offsets along the horizontal axis, connected with cubic Bezier curves for smooth paths. Blobs distribute points on a circle with noise-varied radii and connect them with Catmull-Rom-to-Bezier splines.

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Recommended Reading

Recommended Books on SVG, Generative Art & Creative Coding

Generative Art with JavaScript and SVG

Generative Art with JavaScript and SVG

David Matthew

Using SVG with CSS3 and HTML5: Vector Graphics for Web Design

Using SVG with CSS3 and HTML5: Vector Graphics for Web Design

Bellamy-Royds, Cagle & Storey

Generative Design: Visualize, Program, and Create with JavaScript in p5.js

Generative Design: Visualize, Program, and Create with JavaScript in p5.js

Gross et al.

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