Glassmorphism CSS Generator

Create frosted glass UI effects with live preview. Adjust blur, opacity, and border - copy CSS instantly.

Last reviewed: April 2026

New to this tool? Click here for instructions

Frosted Glass Card

This card uses backdrop-filter to create the glassmorphism effect on any background.

Live Preview
Tint color
Generated CSS
Adjust controls above to generate glassmorphism CSS.

How to Use the Glassmorphism Generator

To use the Glassmorphism CSS Generator, follow these steps:

1. Choose a preset: Start with Apple-style, Windows Fluent, Subtle, or Bold to see different looks instantly.

2. Adjust the sliders: Fine-tune blur amount, background opacity, border opacity, and border radius.

3. Pick a tint color: Click the color picker to change the glass tint from white to any color.

4. Copy the CSS: Click 'Copy CSS' to grab the ready-to-use code with vendor prefixes.

When to Use the Tool in Real Workflows

Use the Glassmorphism CSS Generator when you need to create modern, visually appealing UI elements that mimic the look of frosted glass. It's ideal for creating sidebars, menus, notifications, and other background elements that should have a soft, modern aesthetic.

How It Works

The Glassmorphism CSS Generator uses CSS properties such as `backdrop-filter: blur()`, `background: rgba()`, and `border` to create the frosted glass effect. The tool provides a live preview so you can see the changes in real-time as you adjust the settings.

Tips, Edge Cases, or Limitations

1. Browser Compatibility: Backdrop-filter is supported in Chrome 76+, Edge 17+, Safari 9+ (with -webkit- prefix), and Firefox 103+. Internet Explorer does not support it. The generated CSS always includes both -webkit-backdrop-filter and backdrop-filter to maximize compatibility.

2. Performance Considerations: Backdrop-filter triggers GPU compositing, which can be more expensive than regular CSS properties. Limit the number of elements with backdrop-filter on a single page, avoid animating the blur value directly (animate opacity instead), use will-change: backdrop-filter sparingly on elements you know will animate, and test on mobile devices where GPU resources are more limited.

3. Complex Layouts: For complex layouts, consider applying glassmorphism only to elements that require it to avoid performance issues.

Frequently Asked Questions

Glassmorphism is a visual design style that simulates frosted glass using CSS backdrop-filter: blur() combined with a semi-transparent background color. It has become one of the most recognizable UI trends in modern web and app design.
Backdrop-filter is supported in Chrome 76+, Edge 17+, Safari 9+ (with -webkit- prefix), and Firefox 103+. Internet Explorer does not support it.
To make glassmorphism work on Firefox, you need to use the -webkit-backdrop-filter property along with the unprefixed version. For example: `backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);`
Yes, backdrop-filter triggers GPU compositing, which can be more expensive than regular CSS properties. Limit the number of elements with backdrop-filter on a single page and avoid animating the blur value directly.
`filter: blur()` applies the blur effect to the element itself, while `backdrop-filter: blur()` applies the blur effect to the content behind the element. This means that `backdrop-filter` is more suitable for creating frosted glass effects.

Quick reference

Glassmorphism CSS Generator Parameters
Property Value Opacity Blur
background linear-gradient(135deg, #ffffff, #e0e0e0) 0.5 15px
border 1px solid rgba(255,255,255,0.2) 0.3 10px
background url('glass.png') center/cover 0.7 20px
border none 0.4 8px
background rgba(255,255,255,0.1) 0.6 12px
border 2px dashed rgba(255,255,255,0.3) 0.2 18px

Example walk-through

Worked example: step-by-step

Step 1. Input parameters: background color (#ffffff), blur radius (15px), opacity (0.5), and border color (#000000). Use these values in the generator tool.


  /* Sample input parameters */
  background-color: #ffffff;
  backdrop-filter: blur(15px);
  opacity: 0.5;
  border-color: #000000;
  

Step 2. The tool generates a CSS code snippet with glassmorphism effects using the provided values.


  /* Expected output - CSS code */
  .glass-effect {
    background-color: #ffffff;
    backdrop-filter: blur(15px);
    opacity: 0.5;
    border-color: #000000;
    border: 2px solid #000000;
    padding: 20px;
    border-radius: 10px;
  }
  

Step 3. Apply the generated CSS to a webpage element to achieve the glassmorphism effect. Step by step, the tool transforms input parameters into a functional CSS implementation.