What algorithm is used for noise reduction?

The tool uses a bilateral filter that removes noise while preserving edges. A Gaussian mode is also available for stronger smoothing.

Will noise reduction make my image blurry?

With edge-preserving mode (bilateral filter), detail and edges are maintained. Use a lower strength value to balance smoothing with detail preservation.

What images benefit most from noise reduction?

Photos taken in low light, high ISO photos, scanned images with grain, and images with JPEG compression artifacts benefit most.

Does this tool upload my images?

No. All processing is done using the HTML5 Canvas API directly in your browser. No images are sent to any server.

Image Noise Reduction - Remove Grain from Photos Free

Remove noise, grain, and artifacts from photos with adjustable strength and edge preservation. Runs 100% in your browser — no upload, no account, fully private.

No Upload 100% Private Free

Drop your image here

JPG, PNG, or WebP — remove grain and noise

How Image Noise Reduction Works

Upload Noisy Image

Upload a grainy or noisy photo. Low-light photos, high ISO shots, and scanned images benefit most.

Choose Strength & Filter

Select the denoising strength and filter type. Edge-preserving mode keeps details sharp.

Download Cleaner Image

Compare before and after, then download the denoised image in your preferred format.

Frequently Asked Questions

What filter modes are available?

Edge-Preserving (Bilateral): Smooths noise while keeping edges sharp — best for most photos. Gaussian: Stronger overall smoothing. Median: Best for salt-and-pepper noise (random white/black pixels).

What types of images benefit most?

Low-light and high ISO photos, scanned documents with grain, images with JPEG compression artefacts, and photos taken with older cameras.

Will the image look blurry after denoising?

At lower strength settings (1–4), the edge-preserving filter removes noise while keeping most detail. Higher settings produce stronger smoothing but may soften fine details.

Does this work offline?

Yes. All processing uses the HTML5 Canvas API and runs entirely in your browser — no internet connection needed.