Glassmorphism CSS Generator

Glassmorphism is the frosted-glass UI style built on CSS's backdrop-filter: blur() — a semi-transparent panel that blurs whatever sits behind it, popularized by macOS/iOS and now common in modern web UI (cards, nav bars, modals). This generator lets you dial in the blur radius, background opacity and border treatment with a live preview over a real background, then copy the exact CSS or the equivalent Tailwind utility classes.

How to use the Glassmorphism CSS Generator

  1. Set the blur radius. Drag the blur slider to control how much the backdrop-filter blurs content behind the panel.
  2. Adjust transparency. Set the background opacity so the blurred content shows through the glass panel.
  3. Pick a background color. Choose the base tint of the glass panel — white/light tones read as frosted glass, darker tones as smoked glass.
  4. Copy the CSS or Tailwind classes. Copy the generated backdrop-filter and background CSS, or switch to the equivalent Tailwind utility classes.

Frequently asked questions

What is glassmorphism in CSS?

Glassmorphism is a UI style that mimics frosted glass: a semi-transparent, blurred panel over a background, created in CSS with backdrop-filter: blur() combined with a translucent background color and a subtle border.

How do I create a glassmorphism effect in CSS?

Set backdrop-filter: blur(Npx) on an element with a semi-transparent background-color (e.g. rgba(255,255,255,0.2)) and a thin light border. This generator builds that CSS for you from sliders and a live preview.

What CSS property creates the frosted-glass look?

backdrop-filter (with -webkit-backdrop-filter for Safari) is the property that blurs whatever is behind an element — it is the core of any glassmorphism effect.

Does glassmorphism work in all browsers?

backdrop-filter is supported in all modern browsers (Chrome, Edge, Firefox, Safari). Safari requires the -webkit- prefix, which this generator includes automatically.

What's a good opacity value for a glassmorphism card?

Most frosted-glass UI uses a background opacity between 0.1 and 0.3 — low enough that the blurred background remains visible, high enough that foreground text stays readable.

Can I export the styles as Tailwind classes?

Yes. Toggle Tailwind mode to get the equivalent utility classes (e.g. backdrop-blur-md, bg-white/20) instead of raw CSS.

Is this glassmorphism generator free?

Yes — it's completely free with no sign-up, and everything runs locally in your browser.

Does it support a dark background preview?

Yes, toggle the light/dark preview to see how the glass effect reads against both light and dark backgrounds before you ship it.

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