CSS Glassmorphism Generator
Design the frosted glass effect with backdrop blur, transparency, and borders. 100% client-side.
Scene
Size
Glass Card
Frosted glass effect with backdrop-filter blur
Generated CSS
.glass {
background: rgba(255, 255, 255, 0.15);
backdrop-filter: blur(12px) saturate(180%);
-webkit-backdrop-filter: blur(12px) saturate(180%);
border: 1px solid rgba(255, 255, 255, 0.25);
border-radius: 16px;
box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.15), 0px 8px 32px rgba(30, 58, 138, 0.20);
}Background
Backdrop filter
Border
Shadow
⚡ Presets
Classic
Apple
Dark
Color
Accent
Minimal
🔒 100% private: All generation happens in your browser. Your design is never sent to any server.
About CSS Glassmorphism Generator
Glassmorphism is a UI design trend that mimics frosted glass — a translucent element with a blurred background, subtle border, and soft shadow. It became popular in macOS Big Sur, Windows 11 (Acrylic), and modern web apps. The key property is backdrop-filter: blur(), which blurs whatever is behind the element. When combined with semi-transparent background-color, a subtle border (rgba white), and a soft shadow, you get the classic glass look. Glassmorphism works best when the background behind the glass has visible structure — gradients, images, or patterns. This generator lets you tweak every parameter and see the effect live on several background scenes.
How It Works
- Choose a background scene to preview your glass element on.
- Adjust the glass background color and opacity.
- Adjust backdrop blur, saturation, and brightness.
- Fine-tune the border color, width, and radius.
- Add a shadow and inner highlight.
- Copy the generated CSS and paste it into your stylesheet.
✨ Key Features
- ✓Backdrop blur (frosted glass effect)
- ✓Background transparency (rgba)
- ✓Backdrop saturation and brightness
- ✓Border color and width
- ✓Border radius
- ✓Outer shadow (drop shadow)
- ✓Inner highlight (top border glow)
- ✓20+ curated presets
- ✓6 background scenes (gradient, mesh, image-like)
- ✓Live preview with adjustable size
- ✓Generated CSS with all properties
- ✓Copy CSS with one click
- ✓100% client-side — no data sent to any server
🎯 Common Use Cases
- →Designing modern glass cards and panels
- →Building glassmorphic navigation bars
- →Creating glass effect modals and dialogs
- →Adding depth to hero sections
- →Making glass buttons
- →Designing dashboards with glass widgets
- →Creating frosted glass overlays
- →Learning backdrop-filter by experimenting
💡 Advanced Tips & Pro Insights
- ▸The magic property is backdrop-filter: blur(10px). It blurs whatever is behind the element — not the element itself. This requires a visible background (gradient, image, or pattern).
- ▸The glass background should be semi-transparent white: rgba(255, 255, 255, 0.1) to rgba(255, 255, 255, 0.3). Fully transparent looks empty; fully opaque is not glass.
- ▸Add a subtle 1px border with rgba(255, 255, 255, 0.2) — this is what makes glass elements "pop" off the background.
- ▸A soft outer shadow like "0 8px 32px rgba(31, 38, 135, 0.2)" gives depth. Without it, glass elements look flat.
- ▸Backdrop-filter needs a fallback: Safari uses -webkit-backdrop-filter. This tool generates both.
- ▸Performance warning: backdrop-filter is expensive on low-end devices, especially with large blur radii or many elements. Keep blur under 20px for smooth 60fps.
- ▸Saturation boost (backdrop-filter: saturate(180%)) makes colors behind the glass appear richer — a common trick from iOS/macOS.
Frequently Asked Questions
Is this glassmorphism generator free?▾
Yes, this glassmorphism generator is completely free with no signup, email, or usage limits.
Is my data safe?▾
Yes, 100% safe. All generation happens in your browser. Nothing is uploaded to any server.
What is glassmorphism?▾
Glassmorphism is a UI design trend that mimics frosted glass — translucent elements with a blurred background. It became popular with macOS Big Sur and Windows 11.
What CSS properties create glassmorphism?▾
The key properties are: backdrop-filter: blur() (blurs the background), background: rgba() with low alpha (translucency), border: 1px solid rgba(255,255,255,0.2) (subtle edge), and box-shadow for depth.
Does backdrop-filter work in all browsers?▾
Yes, in all modern browsers (Chrome, Edge, Safari, Firefox 103+). Safari requires the -webkit- prefix. This generator includes both. For very old browsers, provide a solid fallback color.
Why does my glass element look flat?▾
The effect requires a visible background behind the glass. On a plain solid background, blur has nothing to work with. Use a gradient, image, or pattern behind glass elements.
Is glassmorphism accessible?▾
It can hurt readability — text over glass may have poor contrast. Ensure text has sufficient color contrast (WCAG AA) by using dark text on light glass or adding a solid text-shadow.
Can I animate the glass effect?▾
Yes. You can transition backdrop-filter, background, or box-shadow on hover. For moving blobs behind glass (a popular effect), animate the background-position of a large gradient.