Glass Card
This is your glassmorphism component. Adjust the controls on the left to customize the effect.
// GENERATED CSS
// generate glassmorphism css with live preview
Generate glassmorphism CSS instantly. Customize blur, transparency, border, and shadow to create stunning frosted glass UI cards with live preview and one-click copy.
This is your glassmorphism component. Adjust the controls on the left to customize the effect.
Pick a preset gradient that complements your project's color scheme.
Adjust blur, opacity, border, radius, and shadow sliders to get your perfect look.
Hit "Copy All" and drop the generated CSS into your stylesheet — done.
Glassmorphism is a UI design trend using frosted-glass effects — combining backdrop blur, semi-transparency, and subtle borders to create depth and elegance. This tool generates the exact CSS you need with live preview.
Glassmorphism is a design style that simulates frosted glass using backdrop-filter: blur(), semi-transparent backgrounds (rgba), and thin translucent borders. It creates a layered, depth-rich visual effect popular in modern UI design.
Backdrop-filter is supported in Chrome 76+, Safari 9+ (with -webkit- prefix), Edge 17+, and Firefox 103+. For older Firefox, you may need to enable a flag. Always check caniuse.com for the latest support table.
Absolutely. Choose a dark preset like "Ocean" or "Midnight", lower the card opacity, and the glassmorphism effect works beautifully against dark backgrounds. You can also adjust the color tint to a dark hue for extra depth.
Yes. While Tailwind has some glassmorphism utilities (backdrop-blur-*, bg-white/10), the generated CSS can be added to your custom CSS layer or used as inline styles. The property names are standard CSS, so they integrate cleanly.
The backdrop saturation boosts color intensity behind the glass element using backdrop-filter: saturate(). Higher values make the background colors more vivid through the glass, enhancing the frosted effect and visual richness.
Backdrop blur requires something behind the element to blur. Place your glassmorphism card over a gradient, image, or other colorful content. On solid backgrounds, the blur has nothing to process, so the effect won't be visible.
The generated CSS already includes -webkit-backdrop-filter alongside backdrop-filter for full Safari compatibility. Both lines are included in every output automatically — no manual work needed.
Yes, completely free — no sign-up, no watermarks, no limits. Generate as many glassmorphism styles as you need, copy the CSS, and use it in any personal or commercial project.
A CSS glassmorphism generator is a browser-based tool that lets designers and developers visually configure and export the CSS properties required to create frosted-glass UI elements. Instead of manually tweaking backdrop-filter, rgba values, and box shadows through trial and error, you adjust sliders and see the result instantly — then copy production-ready CSS with one click.
Glassmorphism has become one of the most popular design styles since Apple popularized it in macOS Big Sur. It adds depth, elegance, and a modern feel to any UI without requiring complex SVG filters or JavaScript. This tool handles all the math so you can focus on design decisions.
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Glassmorphism relies on four fundamental CSS properties working in concert:
The backdrop-filter property has broad modern browser support, but Safari has historically required the -webkit-backdrop-filter vendor prefix. Our generator outputs both properties automatically, ensuring your glassmorphism effects work correctly across Chrome, Firefox, Edge, and all Safari versions without extra effort on your part.
For users on very old browsers that don't support backdrop-filter at all, the element gracefully degrades to a semi-transparent box — still functional, just without the blur layer. This makes glassmorphism a safe progressive enhancement.
The blur amount dramatically changes the character of your glass effect:
Remember that heavy blur values are GPU-intensive. For components that animate or appear in long lists, keep blur below 20px to avoid performance issues on mobile devices.
One of the most important decisions in glassmorphism design is the balance between background transparency and border visibility. A common beginner mistake is using too much background opacity, which defeats the purpose of the glass effect by hiding the background behind a nearly opaque panel.
A good starting rule: background opacity between 10% and 25%, border opacity between 20% and 40%. This keeps the glass feeling transparent while still giving the card enough presence to stand out. The "Aurora" preset in this tool ships with these balanced defaults, making it a great starting point.
The backdrop-filter: saturate() property is often overlooked, but it dramatically enhances glassmorphism quality. By boosting the color saturation of the blurred background, you get richer, more vivid color mixing through the glass — similar to how polarized glass in photography filters and intensifies colors.
Values between 150% and 250% work well for most scenarios. Above 300%, colors can become unrealistically vivid; below 100% creates a desaturation effect more suited to grayscale or monochrome designs.
Beyond the technical CSS, a few design principles make or break glassmorphism implementations:
Glassmorphism excels in specific contexts where its visual properties add real value:
Backdrop filters are GPU-accelerated in modern browsers, but they're not free. A page with dozens of blurred elements will cause noticeable performance degradation on mid-range mobile devices. Best practices include: limiting the number of simultaneously visible blur elements, avoiding animating blur-heavy components with CSS transitions, and testing on real devices rather than just desktop Chrome.
For animated glassmorphism (e.g. cards that slide in), consider applying the will-change: transform hint to help the browser composite the layer efficiently. But as always, only add will-change when you've measured a real performance problem — it comes with its own memory cost.