Generate the backdrop-filter blur, translucent tint, and soft border behind the glassmorphism look, as a panel, card, or navbar. Adjust how much of the background shows through and how strongly it blurs.
Generated glassmorphism CSS will appear here.
For a card over a photograph, place it over both a bright patch and a dark patch before settling on the tint. For a navbar over scrolling content, check several scroll positions. The background under a translucent surface can change while the surface settings stay exactly the same.
Adjust tint opacity first to establish how much background remains visible, then use blur to soften distracting detail. Saturation changes the color intensity of that backdrop: 100% leaves it unchanged, values below 100% mute it, and higher values intensify it. It does not select the panel's tint color.
The border is white with its own opacity, and the shadow uses a dark slate color. If the panel edge disappears over a light area, changing tint alone may not solve it; assess the border and shadow separately.
Check what is behind it first. Blur has little visible effect over a flat color. Try a background with detail, then lower the tint opacity enough to see that detail through the surface.
A translucent border helps define the edge over a busy background. Check the text against that background too; a stronger blur does not by itself guarantee readable contrast.
| Output | Width limit | Padding |
|---|---|---|
| Panel | 520px | 24px |
| Card | 360px | 28px |
| Navbar | 960px | 16px vertically, 24px horizontally |
Each uses a width capped at 100% of its container, before accounting for padding and borders. The export includes standard and prefixed backdrop-filter declarations with the same blur and saturation. The effect still depends on browser support and the background behind the element.
The preview supplies a colorful backdrop so the filter is visible. That backdrop is not included in the exported class, and the white preview text is not a generated text-color rule. Supply your own background and label color when placing the panel in your layout.
Navbar selects a class, width limit, and padding; it does not create navigation links or make the element sticky. The width declaration also sits alongside padding and a border. Use border-box sizing in your layout if those should fit within the stated width limit.
Check the panel with backdrop filtering disabled as well. The translucent tint remains, but fine detail behind it will no longer be blurred. If that makes the text hard to read, provide a more opaque fallback background in your site's CSS.
backdrop-filter is one of the more expensive things you can ask a browser to paint continuously. It has to re-blur whatever's behind the element on every frame that content scrolls or animates underneath it. A glass navbar over a static hero image costs almost nothing; the same navbar over a video background or a long, fast-scrolling feed can visibly drop frames on lower-powered phones, which is exactly where a lot of traffic actually comes from.
The accessibility problem is more fundamental than a settings tweak: a translucent surface's contrast against its text is only as good as whatever happens to be behind it at that moment, and that's out of your control on a real page. A tint and text pairing that passes WCAG over a plain gray background can fail completely over a bright patch of photo or a light theme toggle. If the panel is carrying anything more than decorative or secondary content, a primary call-to-action, form labels, critical navigation an opaque or near-opaque background is the safer default, and glass is better reserved for supporting UI where a momentary contrast dip isn't the difference between a user succeeding or failing at a task.
It's also worth checking who's excluded before shipping it: backdrop-filter support is solid in current browsers but not universal in older ones, and this generator's -webkit-backdrop-filter line only covers Safari's naming, not older browsers that lack the property entirely for those, whatever background color you set will just render as a flat, unblurred panel, which is a reasonable and usually acceptable fallback rather than a failure state.
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