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Glassmorphism CSS Generator

Create the frosted-glass (glassmorphism) effect visually — adjust blur, transparency, tint, and border over a live preview, then copy the backdrop-filter CSS. Free.

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Glass

💡 How to use

  • Adjust blur and transparency to control the frosted-glass effect.
  • The card sits over a colorful background so you can see the blur working.
  • Copy the CSS — remember the effect needs a background behind the element to show.

Free Glassmorphism CSS Generator

Create the frosted-glass (glassmorphism) effect visually and copy the CSS in one click. Adjust blur, transparency, tint, border, and radius over a live preview — then paste ready-to-use backdrop-filter CSS into your project. Free, no sign-up, runs entirely in your browser.

What is glassmorphism?

Glassmorphism is a design style that makes elements look like frosted glass: a semi-transparent surface that blurs whatever sits behind it, finished with a subtle light border and soft shadow. Popularised by modern operating systems and design systems, it adds depth and a premium, layered feel to cards, navigation bars, modals, and login panels — all with pure CSS and no images.

How the effect works in CSS

Glassmorphism relies on a few properties working together:

  • backdrop-filter: blur() — blurs the content behind the element (the core of the effect).
  • A semi-transparent background — lets the blurred background show through.
  • A thin, light border — catches the 'edge' of the glass.
  • A soft box-shadow — lifts the panel off the page.
  • border-radius — rounds the corners for a polished look.

How to use the glassmorphism generator

It takes seconds to dial in:

  • Adjust the blur to control how frosted the glass looks.
  • Set the transparency so the background shows through nicely.
  • Tune the tint color, border opacity, and corner radius.
  • Copy the CSS and apply it to an element that sits over a colorful background.

The one rule to remember

Glassmorphism only works when there is something behind the element to blur. The backdrop-filter property blurs whatever is underneath, so a glass card over a plain white background will look nearly invisible. Place your glass element over a colorful image, gradient, or busy section — that contrast is what makes the frosted effect appear. The generator's preview uses a colorful backdrop for exactly this reason.

Browser support and accessibility

backdrop-filter is supported in all current versions of Chrome, Edge, Firefox, and Safari, though Safari needs the -webkit-backdrop-filter prefix, which this tool includes automatically. For accessibility, keep enough contrast between your text and the glass surface — heavy transparency plus light text can become hard to read, so test your foreground text and add a text shadow if needed.

Pro tip

Keep glassmorphism for a focal element or two rather than the entire interface — overusing it makes a design feel muddy and hurts readability. A single frosted card over a vibrant gradient background is the classic, high-impact use. Pair this with our CSS Gradient Generator to build that backdrop.

FAQ

Is this Glassmorphism Generator free?
Yes. It is completely free, runs in your browser, and requires no account or sign-up.
What CSS creates the glassmorphism effect?
The key property is backdrop-filter: blur(), combined with a semi-transparent background, a light border, a soft shadow, and rounded corners. This generator produces the full CSS for you.
Why is my glassmorphism effect not showing?
The effect only appears when there is content behind the element to blur. Place the glass element over a colorful image or gradient, not a plain background, and make sure backdrop-filter is not being blocked by a parent's overflow settings.
Does backdrop-filter work in all browsers?
It works in all current versions of Chrome, Edge, Firefox, and Safari. Safari requires the -webkit-backdrop-filter prefix, which this generator includes automatically.
Is glassmorphism good for accessibility?
It can be, if you keep enough contrast between the text and the glass surface. Avoid very high transparency behind small or light text, and add a subtle text shadow to keep content readable.
Does the blur affect performance?
backdrop-filter is more work for the browser than a flat background, so use it on a few focal elements rather than everywhere. On modern devices a handful of glass panels performs well.
What is the difference between glassmorphism and neumorphism?
Glassmorphism uses transparency and background blur to look like frosted glass, while neumorphism uses soft inner and outer shadows on a solid background to make elements look extruded or pressed.

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