CSS Glassmorphism Generator

What is CSS Glassmorphism Generator?

CSS Glassmorphism Generator is a free visual editor for the frosted-glass (glassmorphism) UI style, made for front-end developers and product designers. Adjust the blur amount, surface transparency, color saturation, border thickness, corner radius and shadow strength with number inputs and range sliders, then choose a tint color with the swatch. A live preview pane shows the glass panel over a vivid gradient backdrop in real time, and the complete CSS — using backdrop-filter, a semi-transparent background, a subtle border and a box-shadow — is generated for you to copy. Use it to build glassy cards, navigation bars, modals and overlays without hand-tuning rgba alpha or remembering the -webkit-backdrop-filter prefix.

How to use CSS Glassmorphism Generator

1. Set the Blur (in px) to control how strongly the area behind the panel is frosted.
2. Lower the Transparency to make the glass more see-through, or raise it for a more solid surface.
3. Bump the Saturation above 100% to make the backdrop colors pop through the glass.
4. Pick a tint color with the swatch and adjust the Border width, Radius and Shadow to finish the look.
5. Watch the preview update over the backdrop in real time as you change each value.
6. Copy the generated CSS into your stylesheet — it already includes the -webkit-backdrop-filter fallback.

Examples

blur 12, transparency 25%, saturation 120%, radius 16, border 1, shadow 24

backdrop-filter: blur(12px) saturate(120%); background: rgba(255, 255, 255, 0.25); …

blur 8, transparency 60%, saturation 100%, radius 0, border 1, shadow 8

backdrop-filter: blur(8px) saturate(100%); background: rgba(255, 255, 255, 0.6); …

tint #0f172a, blur 20, transparency 30%, saturation 140%, radius 24, shadow 40

backdrop-filter: blur(20px) saturate(140%); background: rgba(15, 23, 42, 0.3); …

Frequently asked questions

What does backdrop-filter do?

backdrop-filter applies graphical effects — here blur and saturate — to whatever sits behind the element, which is what creates the frosted-glass look. The generator outputs both backdrop-filter and the -webkit-backdrop-filter prefix so it works across browsers, plus a semi-transparent background, border and shadow.

Why is there a transparency control?

The glass effect needs a partly see-through background so the blurred backdrop shows through. The Transparency slider sets the alpha of the panel's background color (rgba): lower values are more transparent, higher values are more opaque and solid.

Can I use a colored or dark glass?

Yes. Pick any tint color with the swatch — the tool blends it into the rgba background, so you can make warm, cool or dark glass. Combine a dark tint with higher transparency for moody overlays, or keep it white for a classic frosted panel.

Will it work in every browser?

Most modern browsers support backdrop-filter. The generated CSS includes the -webkit-backdrop-filter prefix for Safari and older Chromium, but very old browsers ignore it and simply show the semi-transparent background without the blur.

Is my data uploaded anywhere?

No. The generator runs entirely in your browser with JavaScript — your colors and values are never sent to a server, so it works privately and even offline once the page has loaded.