▨Glassmorphism Generator
Create frosted-glass (glassmorphism) CSS effects with a live preview.
Frosted glass has one real weakness and it is not performance. It is that text contrast changes as the user scrolls.
The panel is translucent, so whatever passes behind it alters the background under your text. Copy that passes the contrast check over one part of an image can fail badly over another, and nothing in your testing will catch it unless you scroll the whole page with the text in view.
The practical fix is a tint opaque enough that the panel keeps a consistent base colour — usually above sixty percent — with the blur providing the effect rather than the transparency doing all the work. Below that you have a decoration that quietly fails accessibility.
Where it works
A navigation bar over a hero image. A modal overlay. A floating toolbar. Small surfaces, short-lived, with either no text or large text.
Where it does not
Anything carrying body copy. Long scrolling content. Interfaces used mainly on older phones, because backdrop-filter blurs live content on every frame and that is one of the heavier things you can ask a mobile GPU to do. Over video it is heavier still.
If nothing is blurring
Usually there is nothing behind the element to blur, or a parent has overflow hidden and is clipping the backdrop. The effect needs visible content underneath it — on a plain background it does nothing at all.
Always set a fallback background colour so the panel stays legible where the filter is unsupported or the user has reduced transparency enabled at the system level.
This tool is provided free of charge for general information and convenience only. It runs in your browser and we do not store the data you enter. We make no guarantee as to the accuracy, completeness, or suitability of any result, and accept no liability for any loss, damage, or decision arising from its use — use it at your own risk. See our Terms & Conditions.