Build Frosted-Glass UI With The Glassmorphism Generator
The glassmorphism generator turns the trendy frosted-glass look into a few sliders. Tune blur, transparency, saturation, border and corner radius, watch the card update on multiple backdrops in real time, then copy production-ready CSS straight into your project — no hand-tweaking backdrop-filter values until they feel right.
What glassmorphism actually is
Glassmorphism layers a semi-transparent panel over a colorful background and blurs whatever sits behind it, creating depth without heavy shadows. The effect relies on the CSS backdrop-filter property combined with an rgba() background and a soft 1px border to catch the light along the edges. Apple's macOS and iOS interfaces, Microsoft's Fluent design and countless modern dashboards lean on this pattern to suggest hierarchy and focus.
Controls you'll use
- Blur — how strongly the area behind the card is softened (typically 8–20px).
- Tint & opacity — the rgba fill that gives the glass its color cast.
- Saturation — boosts the colors bleeding through for a more vivid pane.
- Border — a thin highlight that fakes the refractive edge of real glass.
- Radius & shadow — corner softness and lift away from the surface.
Why a visual generator beats writing it by hand
Backdrop blur, alpha channels and saturation interact in non-obvious ways. A 10% opacity card with 4px blur looks washed out; a 25% tint with 18px blur and a slight saturation lift looks premium. Live previewing across light, dark and photographic backdrops surfaces those issues immediately, and pairing the output with a contrast checker keeps text on the panel readable.
Example output
.glass {
background: rgba(255, 255, 255, 0.18);
backdrop-filter: blur(14px) saturate(160%);
-webkit-backdrop-filter: blur(14px) saturate(160%);
border: 1px solid rgba(255, 255, 255, 0.28);
border-radius: 16px;
box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
}Pair it with the rest of your design system
Glass cards rarely live alone. Drop them on top of a vivid backdrop from the mesh gradient generator or a punchy linear blend from the gradient generator to give backdrop-filter something interesting to refract. For tactile, opaque panels in the same UI, the neumorphism generator is the natural counterpart. Browser support for backdrop-filter is documented on Can I Use; the W3C Filter Effects Module covers the underlying spec if you need the fine print.
Keep blur strong, contrast intentional, and use the effect sparingly — glassmorphism shines as an accent, not as the entire page.