CSS Glassmorphism Generator

How to use the css glassmorphism generator

1. Adjust the controls and watch the preview update.
2. Read the generated CSS below the controls.
3. Copy it into your stylesheet.

About this tool

The frosted-glass effect is a translucent background plus backdrop-filter: blur(), which blurs whatever is behind the element rather than the element itself. Without something visually busy behind it, the effect is invisible — glass over a flat colour just looks like a tinted box.

A faint light border along the top edge is what sells it, because real glass catches light at its edge. That is why the generator includes a border control rather than leaving it out.

The accessibility catch is real: text on glass sits over whatever happens to be behind it, so contrast varies as the page scrolls. Keep the background opacity high enough that text stays readable over the worst case, not just the screenshot.

Common uses

• A floating navigation bar over a photographic hero.
• Modal panels that keep context visible behind them.
• Cards over a gradient background.

Frequently asked questions

Why can't I see any effect?

backdrop-filter blurs what is behind the element. Over a flat colour there is nothing to blur, so it needs a photo, gradient or content behind it to be visible.

Is backdrop-filter widely supported?

Yes in all current browsers. Older ones ignore it and show the translucent background alone, which degrades acceptably.

Is glass bad for accessibility?

It can be, because the contrast behind text changes as the page scrolls. Keep the panel opaque enough that text passes contrast over the busiest background it can sit on.