Glassmorphism Generator
Build the frosted-glass CSS effect visually. Adjust background tint, blur, saturation, border, and shadow — see the result on a live gradient background. Copy the CSS with vendor prefixes included.
This card is styled entirely with the CSS below. Move the sliders — the preview updates instantly.
.glass-card { background: rgba(255, 255, 255, 0.15); backdrop-filter: blur(20px) saturate(180%); -webkit-backdrop-filter: blur(20px) saturate(180%); border: 1px solid rgba(255, 255, 255, 0.25); border-radius: 20px; box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25); }
About Glassmorphism Generator
Glassmorphism is the frosted-glass UI style Apple popularized with Big Sur and iOS 14 — translucent panels with heavy background blur, subtle borders, and just enough saturation to make the content behind pop through. Done well, it feels premium; done poorly, it looks muddy or breaks contrast. This Glassmorphism Generator gives you fine control over every parameter: background tint, opacity, blur radius, backdrop saturation, border tint and opacity, corner radius, and shadow depth.
The preview sits on top of a real colorful background — you can cycle through six gradient presets to see how the effect responds to different backdrops. That is important because glassmorphism looks completely different over a plain white background (like nothing) versus over a sunset gradient (dramatic). Copy the CSS with vendor prefixes (-webkit-backdrop-filter) already included, so the effect works in Chrome, Edge, Safari, and modern Firefox out of the box. Ideal for building landing-page hero cards, dashboard widgets, modal dialogs, and any UI element that should feel elevated above its background.
How to Use
Pick a preview background — the effect looks completely different on light vs dark vs saturated backgrounds.
Set the tint color (usually white for a bright feel, black for a dark 'liquid glass' effect).
Adjust opacity — the lower the number, the more transparent the glass.
Blur is the main frosted effect. 10-20px is standard for cards; higher values create a heavier fog.
Saturation boosts the vibrancy of colors behind the glass — 150-200% gives that signature Apple 'liquid glass' pop.
Fine-tune the border tint and shadow to lift the card off the background.
Frequently Asked Questions
Does backdrop-filter work in all browsers?
Chrome, Edge, Safari, and modern Firefox all support backdrop-filter. Firefox required a flag until v103 (2022) — now enabled by default. The tool generates -webkit-backdrop-filter as well for older Safari (pre-14) compatibility. If you need IE support, you cannot use glassmorphism at all — it degrades to a translucent solid background.
Why does the effect only show over a colorful background?
Glassmorphism blurs whatever is BEHIND the element. Over a plain white or solid-color background, there is nothing to blur so the effect looks like a plain translucent panel. The technique needs a colorful, patterned, or image background to shine. Test your card design over your actual site background — a preview against a gradient can be misleading.
Is glassmorphism accessible?
It requires care. Text on a glassmorphic card can be low-contrast against dynamic backgrounds. Always test with WCAG contrast checkers on realistic content backdrops, and consider disabling the effect (reducing to a solid card) when the user prefers reduced transparency (macOS/iOS accessibility setting).
Does backdrop-filter cost performance?
Yes — it forces a compositor pass and re-computes on every scroll or animation. Use it sparingly on high-traffic layouts, and avoid animating properties that trigger repaints below the glass. For lists of 100+ glassmorphic cards, expect scroll jank on mid-range mobile devices.
What is the difference between glassmorphism and neumorphism?
Glassmorphism = frosted, translucent, blur-driven. Neumorphism = soft, extruded, shadow-driven (looks like the UI is pushed into or popping out of the background). They are opposite design languages: glass reveals what is behind; neumorphism uses the background as a physical material.