// generate frosted glass card styles in one click
Generate frosted glass card CSS with live preview. Customize blur, opacity, border, and background — copy the code instantly. No sign-up needed.
Select a gradient preset or pick custom colors for your preview canvas.
Tune blur, opacity, border, radius, and shadow until you love the result.
Switch between CSS, Tailwind, or SCSS tabs and copy your generated styles.
Glassmorphism is a design trend that mimics frosted glass — blurred, semi-transparent surfaces with subtle borders that let colorful backgrounds bleed through. This generator lets you dial in the exact look using CSS backdrop-filter without guesswork.
Glassmorphism is a UI design style that uses backdrop-filter: blur() combined with a semi-transparent background to create a frosted-glass look. It became popular around 2020 and is heavily used in macOS, iOS, and modern web UI.
Yes — backdrop-filter is supported in all modern browsers including Chrome, Firefox, Edge, and Safari. Firefox required a flag until v103. For very old browsers, the style degrades gracefully to a semi-transparent background without blur.
The saturation value inside backdrop-filter boosts color intensity of whatever is behind the glass. Higher values make background colors bleed through more vividly — useful for neon or vivid-gradient backgrounds.
Glassmorphism requires a colorful or varied background to be visible — blurring a solid color just gives you the same solid color. Make sure something visually interesting sits behind your glass element for the effect to render.
Copy the Tailwind tab output and paste the class list directly onto your HTML element. Some classes like backdrop-blur-xl require Tailwind v3+ and may need to be enabled in your tailwind.config.js under experimental.optimizeUniversalDefaults.
Absolutely. Apply the generated CSS to your nav or header element with position: fixed. Set a moderate blur (8–12px) and low opacity (10–20%) for legible navigation. Make sure the z-index is high enough to sit above page content.
backdrop-filter triggers GPU compositing, so very high blur values on large elements can impact performance on low-end devices. Keeping blur under 20px and avoiding too many layered glass elements on a single page keeps things smooth.
Yes. The output includes the standard backdrop-filter property along with the -webkit-backdrop-filter prefix for Safari compatibility. The code is clean, minimal, and ready to paste into any stylesheet or component.
A Glassmorphism Generator is a visual CSS tool that lets you design frosted-glass UI elements without writing a single line of CSS by hand. You control every parameter — blur intensity, background opacity, border transparency, corner radius, and shadow depth — while a live preview updates in real time. When you're happy with the result, the tool generates clean, production-ready CSS, Tailwind, or SCSS code that you can paste directly into your project.
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The frosted-glass effect relies on four CSS properties working together:
backdrop-filter: blur(Xpx) — blurs everything behind the element. This is the core of the effect and requires something visually interesting behind the card.background: rgba(r, g, b, opacity) — adds a semi-transparent tinted layer on top of the blurred backdrop. Low opacity (10–25%) keeps the background visible while giving the glass surface its color.border: 1px solid rgba(255,255,255,0.25) — a thin, translucent border catches light and separates the card from the background, creating a crisp edge.box-shadow — a soft shadow grounds the card in space and adds depth, making it feel lifted off the surface.The glassmorphism trend was popularized by Michal Malewicz in 2020, who coined the name and published a detailed breakdown of its design principles. However, the visual language it builds on has roots in Apple's design system — iOS 7 in 2013 introduced translucent navigation bars and blurred backgrounds across the entire operating system, a dramatic departure from the skeuomorphic textures it replaced.
Microsoft's Fluent Design System introduced "Acrylic" material — their take on blurred, layered surfaces — in Windows 10 in 2017. By 2021, glassmorphism had become a dominant web design trend, appearing in dashboards, SaaS landing pages, portfolio sites, and design tool interfaces around the world. macOS Big Sur (2020) also refreshed Apple's desktop UI with frosted-glass sidebar and toolbar elements, cementing the style's mainstream status.
Glassmorphism works best when the design already has a rich, colorful, or gradient-heavy background. The effect is invisible on solid backgrounds because blurring a single color produces the same color. The most effective use cases include:
For content-heavy or text-dense interfaces — like documentation, forms, or data tables — glassmorphism can reduce readability. In those contexts, stick with solid or very lightly tinted surfaces.
This generator outputs three formats to fit your workflow:
-webkit-backdrop-filter for Safari compatibility.backdrop-blur-xl, bg-white/10, and border-white/25 cover most glassmorphism needs. Some advanced combinations may require a custom config.Getting glassmorphism right involves more than just applying the CSS. Here are some design principles that separate great glass UI from muddy, illegible effects:
inset 0 1px 0 rgba(255,255,255,0.4) shadow on the top edge mimics how light catches glass from above, adding realism.rgba(0,0,0,0.2)) on bright backgrounds creates a striking inverted effect.backdrop-filter is fully supported in Chrome 76+, Edge 17+, Safari 9+ (with -webkit- prefix), and Firefox 103+. For browsers that don't support it, a clean fallback is a semi-transparent background without blur — the card is still visible and functional, just without the frosted effect. You can detect support with @supports (backdrop-filter: blur(1px)) and provide a fallback style inside a @supports not block.
Transparency and blur effects can create challenges for users with low vision or certain cognitive conditions. When using glassmorphism, always ensure that text contrast ratios meet WCAG 2.1 AA standards (4.5:1 for body text). Avoid placing critical information only in low-contrast glass areas. The prefers-reduced-motion media query can also be used to simplify animated glass effects for users who prefer less motion.
JLV DevTools' Glassmorphism Generator runs entirely in your browser. No account, no watermarks, no data sent to any server. Adjust, preview, copy — and get back to building. If you have feedback or want to request a feature, reach out on jlvextension.com.