glassmorphism generator

How to use the glassmorphism generator

  1. Choose a background to preview over — a vibrant gradient, a photo, or a solid color. Glassmorphism only reads correctly on busy backgrounds.
  2. Adjust backdrop blur — 8-20px is typical. Too much blur kills depth; too little loses the frosted effect.
  3. Set background opacity (0.1-0.3 for glass), border opacity (0.1-0.2 for a subtle light edge), and shadow.
  4. Toggle dark mode preview — glassmorphism reads differently over dark vs light gradients. Test both.
  5. Copy CSS or Tailwind v4 output. Tailwind v4 supports backdrop-blur-* directly; older projects need the CSS form.

When to use it

Glassmorphism works best on top of colorful, layered, or photographic backgrounds — modals, overlays, card hovers, hero sections with background media. Use neumorphism when the surface is uniform and you want soft depth without transparency. Use flat design as the default — glassmorphism and neumorphism are accents, not base styles. Accessibility: glassmorphism can fail WCAG contrast ratios; always test text contrast against worst-case background pixels. Alternative: Hype4's glassmorphism generator is similar but without Tailwind v4 output or dark-mode preview.

Example

.glass-card {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 1rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  padding: 2rem;
}

Frequently asked questions

Does backdrop-filter work everywhere?
All modern browsers as of 2024 — Chrome, Edge, Firefox 103+, Safari 9+. Include -webkit-backdrop-filter for Safari compatibility.
Why does my glass effect look flat?
Almost always because the background behind it is too uniform. Glassmorphism needs variation — a gradient, photo, or layered composition — to show the frosted effect.
How do I keep text readable on glass?
Add a subtle text-shadow (text-shadow: 0 1px 2px rgba(0,0,0,0.3)) or use a pure white or pure black text color depending on average background luminance. Test at WCAG AA minimum (4.5:1 for body text).
Is glassmorphism accessible?
It can fail contrast checks because the background changes dynamically. Provide a fallback (@supports not (backdrop-filter: blur(1px))) with a solid background, and set text color high-contrast against a predictable backdrop.
What's the performance cost?
backdrop-filter forces the GPU to re-composite everything behind it. Avoid using it on elements that re-paint frequently — animated cards, scrolling containers. Static modals and heroes are fine.

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Last updated: 2026-04-23