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CSS Glassmorphism Generator

CSS Glassmorphism Generator tool on AzWebTools.

Result

Fill inputs and click run.

How to Use This Tool

  1. Open the CSS Glassmorphism Generator tool.
  2. Click on the color picker to select the base color for your glass element.
  3. Adjust the 'Opacity' slider to make the background more or less transparent.
  4. Move the 'Blur' slider to define the strength of the frosted glass backdrop-filter.
  5. Observe the live preview to see exactly how the effect interacts with the background.
  6. Once satisfied, click the 'Copy' button to grab the generated CSS snippet.
  7. Paste the code directly into your CSS file or style block.

Learn More About CSS Glassmorphism Generator

What is Glassmorphism?

Glassmorphism is a prominent user interface (UI) design trend that emphasizes a multi-layered, 'frosted glass' aesthetic. It relies on the CSS backdrop-filter property to blur the area behind an element, combined with a semi-transparent background color and a subtle lighter border to create a sense of depth and hierarchy.

Key Principles of Glassmorphism

To achieve a perfect glassmorphic look, designers typically rely on four key characteristics:

  1. Translucency (Frosted Glass Effect): Using a background blur to create an out-of-focus background.
  2. Multi-layered Approach: Objects floating in space, showing vivid colors passing through the translucent layers.
  3. Vivid Colors: The effect looks best over vibrant, multi-colored, or photographic backgrounds. If the background is solid or dull, the glass effect becomes invisible.
  4. Subtle Light Border: A 1px semi-transparent white border often helps simulate the physical edge of the glass.

The CSS Behind the Magic

The heavy lifting of this effect is done by the backdrop-filter property. Here is the anatomy of the CSS:

  • background: rgba(255, 255, 255, 0.2); - Sets a white background with 20% opacity.
  • backdrop-filter: blur(10px); - Blurs the content rendered strictly behind the element by 10 pixels.
  • -webkit-backdrop-filter: blur(10px); - Vendor prefix required for Safari support.
  • border: 1px solid rgba(255, 255, 255, 0.3); - Creates the subtle edge highlight.

Browser Support and Fallbacks

While backdrop-filter is supported in all modern browsers (Chrome, Firefox, Safari, Edge), older browsers or environments without hardware acceleration might struggle. It is highly recommended to provide a fallback background color for unsupported browsers. You can achieve this using CSS @supports queries to ensure your text remains readable even if the blur effect fails to render.

The Origin of Glassmorphism

The concept of translucent, blurred backgrounds in UI design first gained mainstream attention with Windows Vista's 'Aero Glass' in 2006 and later with Apple's iOS 7 in 2013. However, 'Glassmorphism' as a named design trend surged in popularity around late 2020. Popularized by operating systems like macOS Big Sur and Windows 11 (via Fluent Design's Acrylic material), the trend evolved to feature vibrant floating elements, soft borders, and deep drop shadows. The widespread adoption of the CSS 'backdrop-filter' property allowed web developers to recreate these native OS effects directly in the browser with just a few lines of code.
Glassmorphism became a defining UI trend in the early 2020s, characterized by semi-transparent backgrounds and frosted glass effects.
Key CSS Property
backdrop-filter
Trend Peak
2020 - Present
Early Influences
Windows Aero (2006), iOS 7 (2013)

Examples

Light Glass

Runtime-verified example for css-glassmorphism-generator
Input
{"blur":10,"opacity":0.2,"color":"#ffffff"}
Output
{
  "blur": 10,
  "opacity": 0.2,
  "color": "#ffffff"
}

Dark Glass

Runtime-verified example for css-glassmorphism-generator
Input
{"blur":10,"opacity":0.3,"color":"#000000"}
Output
{
  "blur": 10,
  "opacity": 0.3,
  "color": "#000000"
}

Deep Frost

Runtime-verified example for css-glassmorphism-generator
Input
{"blur":20,"opacity":0.1,"color":"#ffffff"}
Output
{
  "blur": 20,
  "opacity": 0.1,
  "color": "#ffffff"
}

Sample Scenario

Runtime-verified example for css-glassmorphism-generator
Input
{"blur":10,"opacity":0.25,"color":"#ffffff"}
Output
{
  "blur": 10,
  "opacity": 0.25,
  "color": "#ffffff"
}

Use Cases

  • Designing modern dashboard widgets and analytics cards with visual depth.
  • Creating sleek navigation bars that blur the content scrolling beneath them.
  • Styling modal windows and pop-ups to maintain the context of the background interface.
  • Building attractive pricing tables or product feature cards.
  • Overlaying text on dynamic hero images while maintaining high readability.

Frequently Asked Questions

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