UtilityBaseDeveloper Tools
Glassmorphism Generator
Design a frosted-glass card with live preview and copy the CSS.
Updated July 13, 2026
How to use the glassmorphism generator
- 1Adjust blur, transparency, tint, radius, and saturation.
- 2Watch the card update live over the colorful background.
- 3Toggle the light border on or off.
- 4Copy the CSS onto your card, placed over other content.
Common uses
- Designing a frosted-glass card or modal
- Styling a navbar or sidebar overlay
- Matching a glassmorphism UI trend
- Learning how backdrop-filter works
Frequently asked questions
Why does my glass effect look like a plain box?
backdrop-filter blurs the content behind the element, so if there's nothing behind it — or a flat background — there's nothing to frost and it looks like a semi-transparent rectangle. Place the card over an image, a gradient, or other page content for the effect to appear, as the preview here does.
Does glassmorphism work in all browsers?
backdrop-filter is supported in current Chrome, Edge, Firefox, and Safari, but Safari needs the -webkit-backdrop-filter prefix, which this tool includes. Very old browsers ignore it and simply show the semi-transparent background, which degrades gracefully. Heavy blur can also cost performance on low-end devices.
What makes the effect look convincing?
A few things together: moderate blur (around 8–12px), low background opacity (0.15–0.3), a subtle light border, a soft shadow, and slightly boosted saturation so the blurred colors stay vivid. Too much opacity hides the blur; too little makes text hard to read. The defaults here are a good starting point.
About this tool
The glassmorphism generator builds the frosted-glass effect that's everywhere in modern UI: a semi-transparent card that blurs whatever's behind it. Adjust the blur amount, transparency, tint color, corner radius, and saturation, and see it update live over a colorful background — since backdrop-filter only shows over other content, the preview places bright shapes behind the card so the blur reads. Copy clean CSS with the -webkit- prefix included for Safari. Everything runs in your browser.
Like most tools on UtilityBase, the glassmorphism generator runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more developer tools here.
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