Glassmorphism Generator
Create frosted-glass CSS effects with real-time preview.
background: rgba(255, 255, 255, 0.2); border-radius: 16px; box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid rgba(255, 255, 255, 0.3);
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Creating the Frosted-Glass (Glassmorphism) Effect in CSS
Overview
Glassmorphism is the frosted-glass look — a translucent, blurred panel that lets the background show through softly, popularized by modern operating systems. Recreating it in CSS means combining background transparency, a backdrop blur, a subtle border, and a shadow just right. This generator lets you tune each part with a live preview and copies the exact CSS, so you get the effect without trial and error.
How to Use (Step by Step)
- 1
Set transparency and blur
Adjust the background opacity and backdrop blur to control how frosted the glass looks.
- 2
Tune border and shadow
Add a subtle light border and soft shadow to give the panel its glassy edge and depth.
- 3
Copy the CSS
Paste the generated rule onto your element — make sure it sits over a colorful or image background to see the effect.
How It Works
The effect layers a few CSS properties: a semi-transparent background color, backdrop-filter: blur() to frost whatever sits behind the element, a thin light border to catch the 'edge' of the glass, and a soft shadow for depth. You adjust blur, transparency, and color with sliders while a preview over a background shows the result, then copy the generated rule into your stylesheet.
When to Use This
Designing a card, navbar, or modal that floats over a colorful background or image. Giving a UI a modern, layered depth. Matching the frosted-panel style of iOS or Windows. Creating an overlay that stays readable while showing the content behind it. Prototyping a glass effect before committing to it in code. Learning how backdrop-filter and transparency combine.
Frequently Asked Questions
backdrop-filter only blurs content behind the element, so it needs something colorful or an image behind it — over a plain white background there's nothing to frost. Also confirm the element's background is semi-transparent, not solid.
Important Notes
backdrop-filter is GPU-intensive; many glass panels on one page, especially animated or scrolling, can slow rendering on lower-end devices. Use the effect sparingly on key elements.