Glassmorphism CSS Generator
Build glassmorphism panels with live preview - backdrop-filter + rgba.
.glass {
backdrop-filter: blur(12px) saturate(180%);
-webkit-backdrop-filter: blur(12px) saturate(180%);
background-color: rgba(255, 255, 255, 0.18);
border: 1px solid rgba(255, 255, 255, 0.30);
box-shadow: 0 8px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.08);
}Controls
How to Use the Glassmorphism Generator
- 1.Choose a background preset (gradient options at the top) to set a vivid backdrop for your glass panel.
- 2.Adjust the Blur slider to control the backdrop-filter intensity - higher values create a stronger frosted effect.
- 3.Set the Background Opacity to control how transparent the glass panel is.
- 4.Adjust Border Opacity for a subtle or pronounced glass edge. Toggle the shadow for depth.
- 5.Click "Copy Full CSS" to get the complete ready-to-use CSS class, or copy individual properties.
What is Glassmorphism?
Glassmorphism is a visual design style that creates the illusion of frosted or frosted glass - semi-transparent panels with a blurred view of the content behind them. The effect is achieved in CSS using backdrop-filter: blur() (which blurs elements behind the container), a semi-transparent background-color (usually RGBA white or black at low opacity), and a subtle border with low opacity. Apple popularized this style in macOS Big Sur in 2020, and it quickly spread to web UI, iOS apps, and Windows 11. Glassmorphism creates natural depth and layering without heavy shadows, making interfaces feel modern and airy. It works best over colorful or blurred photographic backgrounds where the blur effect is clearly visible.
Frequently Asked Questions
Why doesn't the glass effect show on a white background?
The frosted glass effect requires a colorful or detailed background to be visible - if the backdrop is plain white or a single solid color, the blur has nothing to distort and the effect is invisible. Always use the effect over gradients, images, or complex backgrounds.
How do I apply glassmorphism to a card in Tailwind CSS?
Use arbitrary values: backdrop-blur-md bg-white/10 border border-white/20 shadow-lg. Tailwind's backdrop-blur-* utilities map directly to backdrop-filter: blur().
Does backdrop-filter affect performance?
Backdrop-filter is GPU-accelerated in modern browsers, making it generally performant. However, applying it to many overlapping elements or on low-end devices can cause frame rate drops. Use it sparingly - one or two glass panels per view is usually fine.