Glassmorphism CSS Generator
Glassmorphism is one of the most popular modern UI design trends, defined by its 'frosted glass' aesthetic, vivid background colors bleeding through, and light borders. Manually tweaking CSS properties like `backdrop-filter: blur(px)` and `rgba` alpha channels to get the perfect glassy look can be tedious. Our interactive Glassmorphism Generator lets you visually adjust all parameters in real-time and outputs production-ready CSS instantly.
100% Private & Secure
This tool runs completely inside your browser using client-side WebAssembly and JS. Zero data is ever sent to our servers.
Glassmorphism
Building beautiful, frosted glass UI components directly in your browser.
Glass Settings
How to use this tool
- Use the sliders to adjust the core visual properties of the glass element.
- Change the Blur Value to increase or decrease the frosted effect on the content behind the glass.
- Adjust the Transparency slider to let more or less of the background color shine through.
- Select a Glass Color. White (#ffffff) is standard for light mode, while Black (#000000) works best for dark mode glass.
- Click the Output 'Copy CSS' button to instantly grab your `backdrop-filter` and `rgba` code.
Example Usage
Standard Light Glass
backdrop-filter: blur(10px); background: rgba(255, 255, 255, 0.2); border: 1px solid rgba(255, 255, 255, 0.1);
Dark Mode Frosted Glass
backdrop-filter: blur(16px); background: rgba(0, 0, 0, 0.4); border: 1px solid rgba(0, 0, 0, 0.2);
When to use this tool
- Designing modern dashboard UI cards that float over colorful gradient backgrounds.
- Creating sleek, Apple-style sticky navigation bars that blur the scrolling page content beneath them.
- Building beautiful login modals and hero section overlays.
- Prototyping 'Dark Mode' components quickly without opening Figma.
Frequently Asked Questions
What CSS property makes the glass blur effect work?
The magic CSS property is `backdrop-filter: blur(10px)`. Unlike the standard `filter` property (which blurs the element itself), `backdrop-filter` applies the effect to everything positioned *behind* the element.
Why is the background color set using rgba?
`rgba` stands for Red, Green, Blue, Alpha. The Alpha channel controls the transparency/opacity of the background element. To make a glass effect work, the background must be semi-transparent (e.g., 20% opacity) so the blurred layers below can be seen.
Is Glassmorphism supported on all browsers?
Yes, currently `backdrop-filter` has excellent browser support across modern versions of Chrome, Edge, Safari, and Firefox. Our generator also includes the `-webkit-backdrop-filter` prefix to ensure maximum compatibility on older Apple devices.
How do I make a dark mode glass component?
Instead of a white background color (`#ffffff`), switch the Glass Color in the tool to black (`#000000`). Then, slightly increase the Transparency value to ensure it looks distinct over dark backgrounds. You should also ensure any inside text is white.