How to Use the Glassmorphism Builder
Design frosted-glass UI elements with a live preview and copy the ready-to-use CSS.
Step 1: Adjust the blur, opacity, border opacity, and border radius sliders.
Step 2: Choose a background type to preview how the glass effect looks in context.
Step 3: Click the CSS output area to copy the generated code, then paste it into your project.
Glassmorphism: The Design Trend That Stuck
Glassmorphism — the design style featuring frosted-glass effects with blur, transparency, and subtle borders — emerged as a major trend and has since become a staple of modern UI design. It adds depth and hierarchy to interfaces without the weight of solid backgrounds.
The CSS Behind the Effect
The core of glassmorphism is the backdrop-filter: blur() property, which applies a Gaussian blur to everything behind the element. Combined with a semi-transparent background color and a thin border with low opacity, the result mimics frosted glass. The box-shadow adds subtle depth.
Accessibility Considerations
Always ensure text on glass elements meets WCAG contrast requirements. Very transparent backgrounds with light text can fail accessibility tests. Use the opacity slider to find the right balance between visual effect and readability.
Frequently Asked Questions
Backdrop-filter is supported in all modern browsers (Chrome, Firefox, Safari, Edge). For older browsers, provide a solid background color as a fallback.
Yes. Select "Photo" from the background dropdown to see how the glass effect looks over an image. In your own project, set any background behind the glass element.
Copy the generated CSS and apply the class to any HTML element. Make sure the element has content behind it (a background image or colored parent) for the blur effect to be visible.