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Free Online Utility

CSS Glassmorphism Generator

Visually create stunning frosted glass effects for your UI designs. Tweak blur, opacity, and borders, then instantly copy the CSS code.

Glass Properties

10px
0.2
0.1

Glassmorphism

Adjust the sliders to see the effect change in real-time.

CSS Code

/* Glassmorphism CSS */
background: rgba(255, 255, 255, 0.2);
border-radius: 16px;
box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
backdrop-filter: blur(10px);
-webkit-backdrop-filter: blur(10px);
border: 1px solid rgba(255, 255, 255, 0.1);

Mastering the Glassmorphism CSS Effect

Glassmorphism has become one of the most popular UI design trends in recent years. Characterized by a frosted-glass aesthetic, it adds depth, hierarchy, and a modern feel to web interfaces. Our Free CSS Glassmorphism Generator allows you to visually tweak and perfect this effect without writing a single line of code manually.

What is Glassmorphism?

Glassmorphism is a design style that mimics the look of frosted glass. It relies on a combination of background blur, semi-transparent colors, and subtle borders to create a sense of verticality and depth. When placed over colorful backgrounds or images, the "glass" elements allow the background to bleed through softly, creating a beautiful, dynamic visual experience.

The Core CSS Properties

To achieve the glassmorphism effect, developers rely on a few key CSS properties:

  • backdrop-filter: blur(): This is the magic property. It applies a blur effect to the area behind the element. Note that for maximum compatibility, you should also include the -webkit-backdrop-filter prefix for Safari support.
  • background: rgba(): A semi-transparent background color (usually white or black) is necessary. The opacity determines how "frosted" the glass looks.
  • border: A very subtle, semi-transparent border (often 1px solid white with low opacity) helps define the edges of the glass element and makes it pop against the background.
  • box-shadow: A soft drop shadow adds depth, lifting the glass element off the background.

Why Use a Generator?

While the CSS for glassmorphism isn't overly complex, getting the exact right balance of blur, opacity, and border transparency requires a lot of trial and error. A visual generator allows you to instantly see how your changes affect the design against different backgrounds. This real-time feedback loop saves developers and designers significant time and ensures a polished final product.

Accessibility Considerations

While glassmorphism looks stunning, it can present accessibility challenges if not implemented carefully. Here are some tips to keep your glass UI accessible:

  • Contrast is Key: Ensure that any text placed on top of the glass element has sufficient contrast against the background. If the background behind the glass is too bright or complex, text can become unreadable.
  • Don't Overuse It: Use glassmorphism for structural elements like cards, modals, or sidebars, rather than for critical interactive elements like primary buttons.
  • Fallback Backgrounds: For older browsers that don't support backdrop-filter, ensure you provide a solid or slightly transparent fallback background color so the content remains readable.

Common Questions

Everything you need to know about this tool.

What is Glassmorphism?
Glassmorphism is a UI design trend that uses background blur and semi-transparent colors to create elements that look like frosted glass.
Which CSS property creates the blur effect?
The 'backdrop-filter: blur(px)' property is used to blur the area behind an element. You should also use '-webkit-backdrop-filter' for Safari compatibility.
Why isn't the blur working on my website?
For backdrop-filter to work, the element itself must have a semi-transparent background (e.g., rgba(255, 255, 255, 0.2)). If the background is fully opaque, you won't see the blur behind it.
Does Glassmorphism work on all browsers?
It is supported in all modern browsers (Chrome, Edge, Safari, Firefox). However, for older browsers, it's best practice to provide a slightly more opaque fallback background color.
How do I make the glass look realistic?
Realistic glassmorphism requires three things: a blur effect, a semi-transparent background, and a subtle, semi-transparent border (usually white) to simulate the edge of the glass catching light.
Can I use dark mode glassmorphism?
Yes! Simply change the glass color to black (e.g., #000000) and adjust the opacity. A dark semi-transparent background over a dark image creates a beautiful dark-mode glass effect.
Is this tool free to use?
Yes, our CSS Glassmorphism Generator is completely free to use with no limits or sign-ups required.

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