IconVault's Glassmorphism Generator builds the frosted glass look visually. Drag sliders for backdrop blur, background opacity, border width, color and opacity, border radius and shadow, and watch the card update live over colorful gradient backgrounds (Sunset, Ocean, Candy, Forest).

When it looks right, one click copies production-ready CSS with the backdrop-filter rule, the -webkit-backdrop-filter fallback for Safari, and your exact values. It is free with no signup and runs fully in your browser. The honest caveat: heavy blur values can cost performance on low-end phones, and always provide a readable fallback because backdrop-filter is unsupported in very old browsers.