Glassmorphism Generator

Create frosted glass cards with live sliders for blur, transparency, saturation and border. Copy clean CSS or Tailwind. Free, no signup.

Tool

Effects/Glassmorphism

Frosted Glass Card

Drag the sliders - this panel re-renders live with your exact CSS.

Glass

Blurpx

Transparency%

Saturation%

Border Radiuspx

Border Strength%

Colors

Glass Tint

Background From

Background To

.glass-card {
  background: rgba(255, 255, 255, 0.18);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.40);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

About the glassmorphism generator

Glassmorphism is the frosted glass look popularised by macOS Big Sur and Windows Acrylic: a translucent panel that blurs whatever sits behind it, edged with a faint highlight. It works because the blur separates the panel from the background while still letting colour bleed through, so the layer reads as glass rather than a flat overlay.

The effect is built from four things working together: a semi-transparent fill, a backdrop-filter blur, a raised saturation so the colours behind stay vivid, and a one-pixel light border along the edge. Drop any one of them and it stops looking like glass. This generator exposes all four so you can tune them against a real gradient instead of guessing.

How to use it

1Pick a preset to start from, or begin with the defaults.
2Set the blur. Ten to twenty pixels reads as glass; beyond thirty the background turns to mush.
3Adjust transparency. Around fifteen to twenty percent keeps the panel readable without looking solid.
4Raise saturation slightly, usually 150 to 180 percent, so colours behind the glass stay rich.
5Set the border strength. A faint white edge is what sells the illusion of a physical pane.
6Copy the CSS, or switch to the Tailwind tab for utility classes.

Worth knowing

backdrop-filter needs something behind it to blur. Over a flat colour the effect is invisible, so place the card over an image or gradient.
Safari requires the -webkit-backdrop-filter prefix, which is included in the exported CSS.
Backdrop blur is GPU work. A handful of glass panels is fine; forty of them in a scrolling list will drop frames on mid-range phones.

Questions

Why is my glass effect not showing?

Almost always because there is nothing behind it to blur. backdrop-filter samples the pixels underneath the element, so over a solid background there is nothing to see. Put the card over an image, a gradient, or overlapping content.

Does glassmorphism hurt accessibility?

It can. Text over a translucent panel sits on whatever is behind it, so contrast changes as the background changes. Keep the fill opacity high enough that text stays above a 4.5:1 contrast ratio in the worst case, and check it with the contrast checker in the design tools.

Is backdrop-filter supported everywhere?

Yes in every current browser, including Safari with the -webkit- prefix. Older browsers simply ignore it and show the semi-transparent fill, which degrades acceptably.