01
Replay a declared pixel recipe
Each row is processed left to right with xorshift32-gray-offset-v1. Create on gray128 or apply the same signed offset to source RGB channels. Seed, dimensions, strength and decoded source determine the output.
Image ToolsFREE · NO SIGNUP
Image Noise Generator
Generate seeded noise or add seeded grain to a browser-local image and download a PNG.
FREE TO USEA LOOK ATLAS TOOL
01 USE IT NOW02 NO ACCOUNT03 FIELD NOTES BELOW
LOCAL IMAGE WORKSPACE
Create texture or add local grain.
ACTUAL PNG EXPORT
Noise image
No output yet
xorshift32-gray-offset-v1 · seeded channel offsetsChoose the settings and submit. The preview and download use the actual output pixels.
Metadata, animation and original encoded bytes are not retained. Browser color handling and alpha round trips can differ. The original selected file is never changed.
12
REPLAY THE GRAIN
Same seed, same pixel recipe
Gray pixels: 108, 109, 133 / 111, 130, 115. One seeded offset per pixel; alpha 255.
WORKING VIEW
NEUTRAL BASELINE
- 128
- 128
- 128
- 128
- 128
- 128
SEEDED OUTPUT
- 108
- 109
- 133
- 111
- 130
- 115
Gray pixels: 108, 109, 133 / 111, 130, 115. One seeded offset per pixel; alpha 255.
THE FIELD NOTES
Quick answer above. Better decisions below.
Use the result now, then read the practical notes for assumptions, examples, limitations, and the choices behind it.
SEED 1 · 3 × 2 · STRENGTH 203 × 2 px
Gray pixels: 108, 109, 133 / 111, 130, 115. One seeded offset per pixel; alpha 255.
02
Decoration is not evidence
Noise does not recover detail, remove noise, prove authenticity or anonymize a subject. Clipping changes the distribution at dark and light channel limits. This is uniform signed grayscale grain, not Gaussian noise.
03
Check the asset before publishing
Review original and seeded variants together with the contact sheet generator, labeling each variant's seed. Check the exported raster with the image size checker before fitting it to a channel's image requirements.
04
Know the browser limits
Static JPEG, PNG or WebP up to 10 MiB, 4096 px per edge and 8 million decoded pixels. PNG export is capped at 40 MiB. Animated and corrupt files are rejected. Original file metadata and encoded bytes are not retained.
05
Keep image content on this device
Decoding, processing and PNG creation happen in this browser. Analytics records fixed action/status categories, never image bytes, filenames, dimensions, seeds or entered values.
THE PRODUCT IS NEXT
Turn the product into the campaign.
Use Look Atlas to transform one straightforward product photo into premium on-model ecommerce imagery for your store, ads, and social channels.TRY YOUR FIRST SHOOT FREENO CREDIT CARD REQUIRED
Replay a declared pixel recipe
Each row is processed left to right with xorshift32-gray-offset-v1. Create on gray128 or apply the same signed offset to source RGB channels. Seed, dimensions, strength and decoded source determine the output.
Decoration is not evidence
Noise does not recover detail, remove noise, prove authenticity or anonymize a subject. Clipping changes the distribution at dark and light channel limits. This is uniform signed grayscale grain, not Gaussian noise.
Check the asset before publishing
Review original and seeded variants together with the contact sheet generator, labeling each variant's seed. Check the exported raster with the image size checker before fitting it to a channel's image requirements.
Know the browser limits
Static JPEG, PNG or WebP up to 10 MiB, 4096 px per edge and 8 million decoded pixels. PNG export is capped at 40 MiB. Animated and corrupt files are rejected. Original file metadata and encoded bytes are not retained.
Keep image content on this device
Decoding, processing and PNG creation happen in this browser. Analytics records fixed action/status categories, never image bytes, filenames, dimensions, seeds or entered values.
Questions, answered.
Does the same seed create the same image?
The same version, seed, dimensions, strength, mode and decoded source reproduce the output pixels. PNG bytes and source color decoding can differ across browsers.
Can I add grain to my own image?
Yes. Choose Apply to image and load a supported static image. The same signed offset is added to RGB at each pixel, with alpha preserved in the pixel buffer.
Does noise prove that a photo is real?
No. It is a decorative pseudorandom effect, not provenance proof, denoising, redaction or anonymization.
BUILT BY LOOK ATLAS
Your product deserves more than a marketplace thumbnail.
Turn a simple product photo into polished, campaign-ready creative for your store, ads, and social channels. No studio. No reshoots.
Create your first shoot free, then keep going when you’re ready.
01 PRODUCT PHOTO → CAMPAIGN