CSS Glassmorphism Generator
Create beautiful frosted-glass UI effects with live preview. Tune backdrop blur, transparency, border, shadow, and border-radius. Copy CSS + HTML in one click.
About this tool
Glassmorphism is a UI style where elements look like frosted glass — semi-transparent backgrounds blurred over whatever sits behind them. The effect comes from the CSS backdrop-filter property combined with a translucent background color, a subtle light border, and a soft shadow. This generator lets you tune all of those values with live preview and copy the resulting CSS in one click.
Example output: background: rgba(255,255,255,0.15); backdrop-filter: blur(12px) saturate(180%); border: 1px solid rgba(255,255,255,0.25); border-radius: 16px;. Drop that onto a card sitting over a colorful or image background and the frosted-glass look appears immediately.
The blur and transparency only show up when there is something visually interesting behind the element — that is why the preview includes gradient backgrounds and decorative shapes. The presets are starting points; tweak any slider afterwards.
FAQ
Why does my glass effect look flat or invisible? ›
backdrop-filter blurs whatever is behind the element. If the background is a solid color or empty, there is nothing to blur and the effect disappears. Place the glass card over an image, gradient, or colorful content for the frosted look to appear.
Which browsers support backdrop-filter? ›
backdrop-filter works in all modern browsers (Chrome, Edge, Firefox 103+, Safari). The generated CSS includes the -webkit-backdrop-filter prefix for older Safari versions. Very old browsers will simply show the translucent background without the blur.
What does the Saturation slider do? ›
It controls backdrop-filter's saturate() value, which boosts or mutes the colors of the blurred background. Higher saturation makes the glass look more vivid; lower saturation gives a cooler, muted frost.
How do I use the copied CSS? ›
Paste it into any element's style attribute or CSS rule. The "Copy HTML" button wraps the CSS in a ready-to-use <div> with a .glass-card class so you can drop it straight into your markup.
How is glassmorphism different from neumorphism? ›
Glassmorphism uses a semi-transparent background with backdrop-filter blur to create a frosted-glass effect — it relies on content behind the element for the visual. <a href="/neumorphism-generator">Neumorphism</a> (soft UI) uses paired light and dark box-shadows on an element that shares its background color with the container, creating a raised or pressed 3D relief. Glassmorphism is great for overlays, modals, and cards over images; neumorphism works best for UI components like buttons, toggles, and controls on a matching background.