Original
A preview appears here after you choose an image.
Image / Local tool
Image Noise Adder
Add repeatable monochrome or RGB grain using a seeded pseudo-random generator for stable previews. Processing stays in this browser, the original file is never uploaded, and exported pixels contain no source metadata.
Choose images to begin.
Download resultDownload all results
Analysis report
◎ Images are never uploaded; Canvas re-encodes exports without original metadata.
Result
A preview appears here after you choose an image.
How to useHow to use Image Noise Adder ⌄
What the tool actually does
Add repeatable monochrome or RGB grain using a seeded pseudo-random generator for stable previews. Processing stays in this browser, the original file is never uploaded, and exported pixels contain no source metadata.
Reproducible example
Example inputExample file: street-photo.png (1920 × 1280)
Noise amount = 20
Seed = 321
Noise mode = MonochromeAdd repeatable monochrome or RGB grain using a seeded pseudo-random generator for stable previews. The output is noise-adder.png, while the source file remains unchanged.
- 1
Choose street-photo.png. A single image is limited to 8 megapixels, and multi-image jobs must also stay within the totals shown on the page.
- 2
Use Noise amount = 20; Seed = 321; Noise mode = Monochrome. The algorithm boundary is: Add repeatable monochrome or RGB grain using a seeded pseudo-random generator for stable previews.
- 3
Inspect the affected regions, edge transitions and transparency before saving the result.
Anonymous feedback
Did this tool solve the job?
Found a problem or an idea to make this tool better? Tell us. We review every report and start working on actionable improvements within 2 days, continuously improving reliability and usability.