Photo cleanup

Image Noise Reduction Preview

See how much grain you can remove before details turn to mush. Compare simple denoise filters on your own photo with a draggable before and after divider.

Drop an image here or click to chooseJPG, PNG, WebP or GIF - processed on your device

Runs entirely in your browser. Nothing is uploaded to any server.

Why preview noise reduction

Find the sweet spot

See exactly where grain disappears and where fine detail starts to smear.

Compare methods

Median, bilateral and smoothing filters handle noise very differently.

Rescue low-light shots

Clean up grainy night and indoor photos before sharing.

How to reduce image noise

Upload a photoDrop in a grainy image, or use Add test noise to try the filters.
Choose a filterStart with bilateral, then compare median and smoothing.
Compare and saveDrag the divider to compare before and after, then download the cleaned image.

How the denoise filters work

A median filter replaces each pixel with the middle value of its 3 by 3 neighborhood. It removes isolated specks and salt-and-pepper noise very well while keeping hard edges, but repeated passes can flatten fine texture. A smoothing filter averages neighbors, which hides grain but also blurs edges.

The bilateral filter is an edge-preserving average: neighbors only count strongly when their brightness is close to the center pixel. Smooth areas get cleaned while edges, where brightness jumps, stay sharp. Edge sensitivity controls how big a jump counts as an edge, and the strength slider blends the result with the original.

Bilateral

Best general choice for photos with fine grain.

Median

Best for dust, specks and salt-and-pepper noise.

Smoothing

A simple baseline that shows what plain blurring does.

Noise reduction FAQ

Which filter should I use?

Try bilateral first for camera grain. Use median when you see random bright or dark specks. Smoothing is mostly useful for comparison.

Why does my photo look plastic?

Too much noise reduction removes texture along with noise. Lower the passes or the strength, or reduce the edge sensitivity for the bilateral filter.

Is this as good as AI denoising?

No. These are classic filters that run quickly in your browser. They are great for previews and moderate noise, while AI tools can recover more detail from very noisy images.

Why is the image smaller than my original?

Photos are processed at up to 1200 pixels on the longest side to keep the preview fast.

Are my photos uploaded?

No. All filtering happens on your device.

Try other image tools

More free tools from My Panda Toolbox.

SHRPSharpen ImageCrisp up details. BLURImage Blur ToolBlur a whole image. CMPImage Comparison SliderCompare two images. BRTImage Brightness Contrast AdjusterFix exposure.