CSS Glassmorphism Generator

About this tool

Design the frosted-glass "glassmorphism" card effect visually — a semi-transparent, blurred background with a subtle border and shadow — over a sample colorful backdrop, then copy the ready-to-use CSS for your own card.

Frequently asked questions

Why does the effect need a colorful background behind it?

The blur and transparency only read as "glass" when there's something visually interesting behind the card to blur — over a plain white or single-color background, the effect is barely visible. Make sure your real layout has an image, gradient, or busy background behind the glass element.

Which browsers support backdrop-filter?

All modern browsers (Chrome, Edge, Firefox, Safari) support it today, though Safari historically needed the -webkit-backdrop-filter prefix — this generator includes both automatically.

Why is my card hard to read?

Very low tint opacity combined with a busy backdrop can hurt text contrast — increase the tint opacity, add a text shadow, or darken/lighten the tint color to keep content legible.