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Design & Color tool

CSS Glassmorphism Generator

Create frosted-glass CSS effects with live controls for blur, opacity, borders, and shadows.

Frosted glass

Glass settings

CSS glass effect
background: #ffffff33;
backdrop-filter: blur(16px);
border: 1px solid #ffffff59;
border-radius: 24px;
box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);

About the Handiwork CSS Glassmorphism Generator

Create a frosted-glass effect with live controls for translucency, blur, border radius, and shadow, then copy the complete CSS declaration for a glass card or panel.

How to use the Handiwork CSS Glassmorphism Generator

  1. Choose the glass color and adjust its opacity.
  2. Tune the backdrop blur and corner radius.
  3. Enable a shadow if desired, then copy the CSS and place the element over a colorful background.

How glassmorphism works

Glassmorphism combines a translucent surface with backdrop blur, a subtle border, and often a soft shadow. It works best over a colorful or photographic background.

Why the background matters

Backdrop blur affects what is behind the glass element. A plain background will make the effect subtle, while gradients, images, and layered color shapes make the frosted treatment visible.

Balance opacity and contrast

Lower opacity reveals more of the background but can reduce text contrast. Use a readable text color, sufficient surface opacity, and a contrast check for important content.

Use progressive enhancement

The generated effect uses backdrop-filter. Provide a solid or semi-opaque background fallback so the component remains usable in browsers that do not support the blur effect.

Assumptions and limitations

  • The effect depends on browser support for backdrop-filter.
  • The preview uses a fixed colorful background and a single glass panel.
  • The generated color alpha uses hexadecimal notation supported by modern browsers.
  • The generator does not include vendor-prefixed properties or mobile-specific fallbacks.

Frequently asked questions

Why does the blur need a background behind it?

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Backdrop blur affects content behind the element, so a plain background makes the effect difficult to see.

Is backdrop-filter supported everywhere?

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Modern browsers generally support it, but you should test the effect in the browsers you support and provide a solid fallback.

What opacity should I use?

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Start around 15% to 30%, then increase opacity until text and controls remain readable over your actual background.

How do I make the glass effect accessible?

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Check text and control contrast against the resulting background, avoid relying on translucency alone, and provide a fallback surface color.

Can I use this for a full-page background?

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The output is designed for a panel or card. For full-page effects, apply the background and blur carefully to avoid unnecessary rendering work.

Method and guidance for this tool is documented.

How we review tools

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