Glassmorphism CSS Generator
Create the frosted-glass effect with blur, transparency and tint — live preview and copy-ready CSS.
Create the frosted-glass effect
The Glassmorphism Generator builds the popular frosted-glass UI effect — a translucent, blurred panel that lets the background show through softly. Adjust the blur, transparency, corner radius, and tint, preview it over a colorful backdrop, and copy the CSS. It is the quickest way to add that modern, layered look to cards and overlays.
What is glassmorphism?
Glassmorphism is a design style defined by translucency and background blur, creating the impression of frosted glass floating above the content behind it. It became popular through modern operating systems and design systems. The effect relies on three ingredients: a semi-transparent background color, a backdrop-filter: blur(), and a subtle light border to catch the "edge" of the glass.
The CSS behind the effect
| Property | Role |
|---|---|
| background: rgba(...) | Semi-transparent fill so content shows through |
| backdrop-filter: blur() | Blurs whatever is behind the element |
| border | A faint light border defines the glass edge |
| border-radius | Soft corners complete the look |
How to use it
- Set the blur strength and panel transparency.
- Adjust the corner radius and pick a tint.
- Copy the generated CSS — it includes the
-webkit-prefix for Safari.
Tips for great glass
- Needs a busy background. Glassmorphism only shows over a colorful or image background — it is invisible on flat color.
- Keep transparency moderate. Too transparent and text becomes unreadable; aim for 10–25%.
- Add a light border to define the edge — it is what sells the effect.
- Mind performance. Heavy backdrop blur can be costly on low-end devices; use it sparingly.
Browser support
The backdrop-filter property is supported in all modern browsers, but Safari needs the -webkit-backdrop-filter prefix — which the generated code includes. For older browsers that do not support it, the panel gracefully falls back to a plain semi-transparent background, so your layout stays intact.
Private and free
The generator runs entirely in your browser with a live preview, no sign-up, and no limits. Create as many glass styles as you like, free.
Frequently asked questions
What makes the glassmorphism effect?
A semi-transparent background, a backdrop-filter blur, a light border, and rounded corners together create the frosted-glass look.
Why can't I see the effect?
Glassmorphism only shows over a colorful or image background. Over a flat color, the blur has nothing to blur.
Does it work in Safari?
Yes. The generated CSS includes the -webkit-backdrop-filter prefix that Safari requires.
Is it free?
Yes, completely free with a live preview, running entirely in your browser.