Backdrop Filter Generator
Build complex backdrop-filter CSS with individual sliders for each filter function.
backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
Frequently Asked Questions
What does backdrop-filter do in CSS?
backdrop-filter applies graphical effects — such as blur, brightness, contrast, grayscale, or saturate — to the area behind an element, not the element itself. It is the CSS property that enables the frosted glass (glassmorphism) effect.
Is backdrop-filter supported in all browsers?
Yes, as of 2023, backdrop-filter is supported in all modern browsers: Chrome 76+, Edge 79+, Firefox 103+, and Safari 9+ (with -webkit-backdrop-filter prefix). Always include -webkit-backdrop-filter for Safari compatibility.
How do I create a blurred overlay in CSS?
Create a semi-transparent div positioned over your content and apply backdrop-filter: blur(10px). Example: .overlay { position: absolute; inset: 0; backdrop-filter: blur(10px); background: rgba(0,0,0,0.2); }
Can I combine multiple backdrop-filter functions?
Yes. You can chain multiple functions: backdrop-filter: blur(8px) brightness(0.9) saturate(180%). This allows you to create complex effects like a dimmed, blurred glass panel in a single declaration.
Why does backdrop-filter not work on my element?
backdrop-filter requires the element to have a background (even rgba(0,0,0,0.01) works). Also check that no ancestor has overflow: hidden cutting off the effect, and that the element stacks above the content you want to blur.