Blob & Wave SVG Generator
Generate organic blob shapes and smooth wave patterns for backgrounds, hero sections, and decorative elements. Real-time preview with full control over complexity, color, layers, and size.
How It Works
- Choose a shape type: blob, wave, or corner decoration
- Adjust complexity, size, color, and gradient controls
- Add multiple layers for depth effects
- Randomize for instant variations
- Download SVG or copy the code directly
Features
- Organic blob generation with spline smoothing
- Multi-layer wave patterns with independent controls
- Solid and gradient fill modes
- Corner blobs for section decorations
- Configurable viewBox and output dimensions
- Copy-paste ready SVG for any project
- 6 curated presets per shape type
- 100% client-side, no data leaves your browser
What is the Blob & Wave SVG Generator?
This free online blob and wave SVG generator creates organic shapes, smooth wave patterns, and corner decorations directly in your browser. You can customize complexity, color gradients, layers, and dimensions, then download or copy the SVG code instantly. No uploads, no signups, and no server processing required.
Web designers and developers frequently need decorative SVG shapes for hero sections, section dividers, and background elements. Instead of drawing these manually in Illustrator or Figma, this tool generates production-ready SVG code with real-time preview and full parametric control over every aspect of the shape.
How to Use This Tool
Follow these steps to generate custom SVG blobs and waves with this free online tool:
- Choose a shape type - Select Blob for organic shapes, Wave for layered wave patterns, or Corner for decorative corner elements using the tabs at the top.
- Pick a preset or customize - Start with one of the 6 curated presets per shape type, or adjust the sliders for complexity, size, irregularity, amplitude, layers, and rotation to get exactly the shape you want.
- Set your colors - Switch between gradient and solid fill modes. Pick two colors for gradient fills, or a single color for solid shapes. Use the color pickers or type hex values directly.
- Export your SVG - Click "Download SVG" to save the file, "Copy SVG" to put the code on your clipboard, or "View Code" to inspect and copy from the code panel. Paste it directly into your HTML or design tool.
Key Features
- Three shape modes - Generate organic blobs with spline smoothing, multi-layer wave patterns with independent phase and amplitude, or corner blobs positioned at any corner of the viewport.
- 18 curated presets - Six presets per shape type (Soft, Spiky, Circle, Amoeba, Ink Drop, Bubble for blobs; Gentle, Ocean, Sharp, Layered, Minimal, Sunset for waves) give you instant starting points.
- Gradient and solid fills - Apply linear gradients with two custom colors or use a single solid fill. Wave layers automatically interpolate between your chosen colors for depth.
- Configurable output dimensions - Set the SVG viewBox from 200px to 1920px wide and 200px to 1080px tall. The generated code respects your exact dimensions.
- Randomize button - Instantly generate new shape variations while keeping your current settings. Each click produces a unique organic shape by regenerating the random seed.
- Copy-paste ready SVG - The exported code is clean, self-contained SVG with no dependencies. Paste directly into HTML, React components, Figma, or any design tool.
Common Use Cases
Frontend developers use this tool to generate hero section backgrounds with layered waves, replacing static images with lightweight SVG that scales perfectly on any screen. UX designers create organic blob shapes for behind-card decorations, pricing section dividers, and testimonial backgrounds without opening a full vector editor. Landing page builders use the corner mode to add subtle decorative elements that frame content sections. Indie developers and startup founders generate on-brand decorative SVGs in seconds for SaaS landing pages, portfolios, and product sites, keeping page load fast with inline SVG instead of heavy PNG backgrounds.
Frequently Asked Questions
Can I use the generated SVGs in commercial projects?
Yes. All SVG shapes generated by this tool are yours to use freely in any project, including commercial websites, apps, and client work. The shapes are algorithmically generated in your browser and are not subject to any licensing restrictions.
How do I add a blob SVG as a background in CSS?
Copy the SVG code, then either paste it inline in your HTML and position it with CSS (position: absolute, z-index: -1), or save it as a .svg file and reference it as a background-image in your stylesheet. Inline SVG gives you the advantage of animating the shape with CSS transitions or JavaScript.
What is the difference between blob, wave, and corner modes?
Blob mode creates closed organic shapes centered in the viewport, perfect for behind-element decorations. Wave mode generates layered sinusoidal paths that fill from the bottom up, ideal for section dividers and footer backgrounds. Corner mode produces quarter-circle organic shapes anchored to a specific corner, great for framing content or adding subtle decoration to card edges.
Will these SVGs slow down my website?
No. The generated SVG code is typically 1-3 KB, which is far smaller than equivalent PNG or JPG decorative images (often 50-200 KB). SVGs also scale perfectly at any resolution without pixelation, making them ideal for responsive design. They render natively in all modern browsers without any JavaScript dependency.
Can I animate the blob or wave shapes?
Yes. Since the output is standard SVG path elements, you can animate them using CSS keyframes, GSAP, Framer Motion, or native SVG SMIL animations. A common technique is to generate two blob shapes with the same complexity settings, then use CSS morph transitions between their path data for a smooth organic animation effect.