CSS Glassmorphism Generator Online Free

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Glassmorphism Generator — frosted-glass backdrop-filter, live preview runs in your browser · nothing uploaded

glass card

BACKDROP

the effect only shows over a busy background — that's why it previews here

Tint

border outline

↑↓ nudge focused slider by 1 (⇧ ±10)

backdrop-filter needs a background behind the element

Glassmorphism Generator Online

Updated 2026-08-19

Create glassmorphism CSS online for free. Drag sliders for blur, transparency, and corner radius, pick a tint, and watch a frosted-glass card render over a colourful background — then copy the background and backdrop-filter declarations. Everything runs in your browser, so nothing you design is uploaded.

The frosted-glass look is really just a translucent background plus backdrop-filter: blur(), but the right balance of blur and opacity is hard to guess without seeing it. This generator previews the effect over a vivid backdrop — the only place it actually shows — and emits clean CSS with the -webkit- prefix included, ready to drop onto a card, navbar, or modal.

// how to use

1 Drag the blur, transparency, and corner-radius sliders and pick a tint colour.
2 Watch the frosted-glass card update over the colourful preview background.
3 Click Copy CSS to grab the background and backdrop-filter declarations.

// examples

Frosted card

Input

blur 8px, 25% white tint, radius 16px, border on

Output

background: rgba(255, 255, 255, 0.25); backdrop-filter: blur(8px); …

Heavier frost

Input

blur 16px, 15% tint

Output

background: rgba(255, 255, 255, 0.15); backdrop-filter: blur(16px); …

// common uses

Designing frosted cards, navbars, and modals Creating glass overlays on hero images Building a modern translucent UI panel Prototyping the glassmorphism look before coding

// faq

Is anything uploaded to a server?

No. The effect is rendered live in your browser and the CSS is generated on the fly, so nothing you design leaves your machine.

What is glassmorphism?

It is the frosted-glass UI style — a semi-transparent panel that blurs whatever sits behind it, usually with a subtle light border. It is built from a translucent background plus the CSS backdrop-filter property.

Why does the effect need a background behind it?

The backdrop-filter blurs the content behind the element, so the glass only looks frosted when there is a colourful image or gradient underneath. On a plain flat background there is nothing to blur.

Does backdrop-filter work in all browsers?

It is supported in current versions of every major browser, and the tool includes the -webkit- prefix for older Safari. Very old browsers ignore it and simply show the translucent background.

Can it hurt performance?

A blurred backdrop is more expensive to paint than a solid colour, so use it on a few key panels rather than dozens of elements, especially on lower-powered devices.

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