CSS Glassmorphism & Multi-Layer Box Shadow
Generate modern frosted glassmorphism effects and smooth multi-layer box shadows with live visual preview. Copy ready-to-use CSS and Tailwind code.
Glassmorphism & Shadow Controls
Multi-Layer Elevation Shadow
Live Canvas Preview
/* Calculating... */About this tool
How to use it
- Choose a starting aesthetic preset (iOS Frosted, Dark Obsidian, Cyber Neon, Smooth Card, or Subtle Frost).
- Adjust backdrop blur, surface transparency, edge highlight border opacity, and border radius.
- Tune the multi-layer box shadow elevation (blur spread and shadow intensity) for realistic floating depth.
- Switch canvas backdrops (Mesh Gradient, Sunset, Dark Grid) to test translucency against different palettes.
- Select Vanilla CSS or Tailwind CSS tabs and click 'Copy Code' to paste directly into your stylesheet.
Why it matters
Glassmorphism creates modern, high-end UI depth by combining CSS backdrop-filter blur with subtle semi-transparent white borders and ambient elevation shadows. However, getting the balance between readability, border refraction, and cross-browser vendor prefixing (-webkit-backdrop-filter for Safari) requires tedious trial and error.
When to use it
Use this generator when building modern web apps, SaaS navigation headers, modal dialogs, credit card checkout components, or HUD dashboards.
Good to know
Always include `-webkit-backdrop-filter` alongside standard `backdrop-filter` to ensure smooth rendering across Apple Safari and iOS WebKit browsers. Ensure text contrast meets WCAG AA standards (4.5:1 ratio) against both light and dark background elements.
Common questions
What is CSS glassmorphism?
Glassmorphism is a modern UI design trend characterized by translucent frosted surfaces, background blur, subtle multi-directional shadows, and delicate 1px border highlights that mimic the optical appearance of frosted glass.
Why is -webkit-backdrop-filter required?
Apple's Safari browser on macOS and iOS requires the `-webkit-` vendor prefix to activate hardware-accelerated background blur. Omitting `-webkit-backdrop-filter` results in flat semi-transparent boxes with no frosted glass effect for Safari users.
How do I make glassmorphism text readable?
To maintain high contrast and accessibility, keep surface opacity between 20% and 35% and use high-contrast text colors (pure white #ffffff or deep obsidian #0f172a). Increasing the backdrop blur to 16px–24px smooths out busy background textures underneath the text.
Can I use these styles with Tailwind CSS?
Yes! Switch to the 'Tailwind CSS' tab in the code snippet box to get modern Tailwind arbitrary value utilities (e.g. `backdrop-blur-[16px] bg-white/25 border border-white/30 rounded-[16px] shadow-[...]`).
Does backdrop-filter impact page performance?
Applying backdrop-filter to dozens of overlapping moving elements can cause GPU rendering strain. For optimal 60 FPS performance, limit glassmorphic surfaces to fixed navigation bars, modal overlays, and primary hero cards.