Glassmorphism in CSS: How to Build Frosted Glass UI Panels

Glassmorphism is a UI style that combines blur, transparency and soft borders to create translucent panels. It became popular in dashboards, landing pages and mobile interfaces.

What creates the glassmorphism effect?

The core ingredients are backdrop-filter, translucent backgrounds, light borders and rounded corners. The blur affects the content behind the element.

backdrop-filter: blur(12px);
background: rgba(255, 255, 255, 0.2);
border: 1px solid rgba(255, 255, 255, 0.3);
border-radius: 12px;

Generate your own glass effect

Use our generator to adjust blur, opacity, border strength and radius values live before copying the final CSS.

Glassmorphism Generator Open local tool page

Tips for better glassmorphism

Use moderate blur values for performance and clarity.
Keep background opacity low enough to feel translucent.
Combine the effect with gradients or layered backgrounds.

FAQ

What property makes glassmorphism work?

backdrop-filter is the main property behind the blur effect.

Why add a border to glass panels?

Soft borders help define edges and improve the illusion of glass.

Is glassmorphism good for every interface?

No, it works best when readability and contrast are still controlled.