ffee
All tools
Noise Reducer
Smooth away grain and digital noise by averaging neighbouring pixels.
Reduce noise in an image
Working size: No image loaded
Settings: —
How to use the Noise Reducer
- Choose the noisy photo you want to smooth.
- Set the radius and the strength with the two sliders.
- Click the download link to save the denoised PNG file.
Features
- Fast box average over a radius of 1 to 6 pixels
- Strength blend keeps as much real detail as you want
- Sliding window averaging stays quick on large photos
- Live preview while you fine tune the settings
Advertisement
Frequently Asked Questions
Common questions about the free online noise reducer.
Choose a noisy photo, set the radius and strength, then download the smoothed result as a PNG
file.
No. The averaging runs over the pixels in your browser, so your photo is never uploaded to
any server.
Every pixel is replaced by the average of its neighbours, which cancels random speckle while
keeping larger shapes intact.
Radius sets how wide the neighbourhood is. A larger radius smooths more noise but also
softens fine detail.
Strength blends the smoothed result back over the original, so you can dial in as much
cleanup as you need.
Use the smallest radius that clears the noise. Heavy settings can make skin and foliage look
plasticky and flat.
Yes. Grain is random speckle while real detail is consistent, so averaging removes the
speckle and mostly keeps the detail.
Yes. The noise reducer is fully responsive and works in any modern browser on phones, tablets
and desktop computers.
Yes. It is completely free and unlimited, with no account, no sign-up and no watermark on
your downloaded image.
Last updated: October 10, 2026