What is the CSS Noise Texture Generator?
Generate subtle noise and grain textures as CSS backgrounds using SVG filters. Add organic depth to flat surfaces without image files.
Everything runs locally in your browser. Adjust the controls above, preview instantly, and copy clean, production-ready CSS — no account, no upload.
Using the CSS Noise Texture Generator
Everything lives in the panel at the top of this page. There is nothing to install — it all runs right here in your browser.
Set noise frequency and octaves
Higher baseFrequency creates finer grain. Higher numOctaves adds more detail. Start at 0.65 frequency and 3 octaves for a film grain look.
Set opacity
Keep opacity between 0.02 and 0.08 for subtle texture. Use the slider to preview different intensities.
Copy the CSS
Click Copy to get the ::after pseudo-element CSS with the data URI SVG filter.
What the generated code looks like
Clean, production-ready CSS — no vendor bloat, no unnecessary declarations.
/* SVG noise filter */
.noise-bg {
position: relative;
}
.noise-bg::after {
content: '';
position: absolute;
inset: 0;
opacity: 0.04;
pointer-events: none;
background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
background-size: 200px 200px;
}Keep noise opacity below 0.1 for subtle grain. Higher values become visually distracting. Use pointer-events: none so the noise overlay does not block clicks.
Pro tips for better results
Noise textures add perceived quality to flat designs
A 3-5% opacity noise overlay on solid colour backgrounds reduces the sterile flatness of pure colour and adds a tactile quality without introducing visible texture.
Tile the noise texture with background-size
Set background-size to a fixed size (150px-300px) to control the tile frequency. Larger tiles give coarser grain; smaller tiles give finer grain.
Use pointer-events: none on the ::after layer
The noise overlay covers the element and will capture mouse events if pointer-events is not disabled. Always add pointer-events: none to decorative overlay pseudo-elements.
Frequently asked questions
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