Image Noise Generator
Create noise textures for design, games and photo editing. Choose white noise for TV static, Gaussian noise for film grain, smooth noise for soft blobs, fractal noise for clouds or turbulence for marbled patterns. Colour it with two colours or random RGB, set the feature size, detail and contrast, and make it semi-transparent to use as an overlay. Every texture is reproducible from its seed, and the smooth types tile seamlessly.
- Runs in your browser
- No sign-up
- Free to use
Smooth, fractal and turbulence noise tile seamlessly when width and height are equal. The same seed always gives the same image.
How to use Image Noise Generator
- Choose the noise type or a preset.
- Set colours, feature size, detail and contrast.
- Pick the image size and a seed.
- Download as PNG, JPG or WebP.
Image Noise Generator features
Five noise types
White, Gaussian, smooth, fractal and turbulence.
Seamless tiles
Smooth noise repeats without visible edges.
Seeded
The same seed always gives the same image.
Overlay ready
Opacity for grain overlays in PNG or WebP.
Any size
Up to 8192 pixels per side.
Private
Created in your browser; nothing is uploaded.
When to use Image Noise Generator
- Film grain overlays for photos and videos.
- Background textures for websites and slides.
- Height maps and textures for games and 3D.
- Dithering and testing image compression.
Image Noise Generator FAQ
What is the difference between the noise types?
White noise gives every pixel an independent random value. Gaussian noise clusters values around the middle, like film grain. Smooth noise interpolates random values on a grid, fractal noise adds several layers of smooth noise at increasing detail, and turbulence folds fractal noise for vein-like structures.
What does the seed do?
It starts the random number generator. The same seed and settings always produce the identical image, so you can recreate or share a texture.
How do I make a grain overlay?
Use the Film grain overlay preset, keep the opacity low and download PNG. Place it above a photo with the blend mode overlay or soft light in your editor.
Is this Perlin noise?
It is value noise, a close relative: random values on a grid are smoothly interpolated. Layered as fractal noise it gives very similar clouds and terrain.
Is anything uploaded?
No. Everything is generated and processed in your browser.
Noise as a design material
Noise sounds like something to avoid, but structured randomness is one of the most useful ingredients in graphics. It breaks up flat colours that look artificial, adds grain that makes digital images feel analogue, and forms the basis of procedural textures such as clouds, terrain, marble and wood.
White noise is the simplest form: every pixel gets an independent random value. Gaussian noise draws values from a bell curve, so most pixels stay close to mid-grey and extremes are rare – the statistical character of film grain and sensor noise. Both are per-pixel noise, so their look depends on the image resolution.
Smooth noise works on a coarse grid of random values and interpolates between them with a smooth curve, producing soft, organic blobs whose size you control with the feature size. Fractal noise sums several layers, or octaves, of smooth noise, each twice as detailed and half as strong as the previous one. The result has detail at every scale, like real clouds. Turbulence takes the absolute value of fractal noise and inverts it, turning the transitions into sharp ridges.
All smooth types are computed on a grid that wraps around the edges, so the image tiles seamlessly – useful for website backgrounds and game textures that repeat.
Because every texture is generated from a seed, the same settings always produce the same pixels, which makes results reproducible and easy to share.