Median Image Denoiser
Remove isolated bright or dark speckles with a selective median filter.
Drop your image here
Drag and drop, or choose a file below
JPG · PNG · WEBP
Up to 250 MB · One image at a time
Each image: up to 16 megapixels and 8192 px per side
Best for salt-and-pepper noise. Fine text and small details may change; this is not an AI detail reconstruction tool.
Original
Choose an image or try the sample to see your preview here.
100% local processing
How to use
- 01
Choose an image or try the local sample.
- 02
Set the minimum channel difference to replace and the blending strength.
- 03
Review the result and download the file.
Details and tips
How it works
A 3×3 neighborhood supplies the median for each RGB channel. Only differences at or above the threshold are corrected. Hidden transparent colors are ignored; alpha is retained.
Made for everyday images
Clean isolated sensor speckles and scanned artwork before export.
Frequently asked questions
Are images uploaded?
No. Processing, previews and downloads stay on your device.
What are the limits?
JPG, PNG and WebP, up to 250 MB, 8192 pixels per side and 16 million pixels. Expanded output must also fit these limits. Animation uses one still frame.