Denoise image
Reduce impulse noise using a small median filter.
Local processing · Nothing is uploaded · 20 MB / 4 megapixel limit
Input & settings
Result
How to use
Choose a 3×3 or 5×5 neighborhood. Each RGB channel receives its neighborhood median.
Limits and behavior
Alpha is preserved; edge neighborhoods are clipped. Fine detail can be lost. This is not AI denoising. Still PNG, JPEG and WebP only; 20 MB, 4 megapixels and 4,096 pixels per side. Processing stays on your device. Exports apply orientation and discard source metadata. PNG output preserves transparency unless the selected operation composites it.
Reduce salt-and-pepper style image noise
Use a local median filter to reduce isolated speckles and impulse noise. This can help images with small, scattered pixel artifacts.
Will denoising repair all blurry or grainy photos?
No. A median filter is primarily suited to certain noise patterns and can also soften fine details.
Related tools: Sharpen image · Blur image