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Reduce an image's noise

Reduce grain and noise in a photo with AI, keeping its original size, directly in your browser.

Processed on your device via WebAssembly. Nothing is sent to any server.

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Reduce noise and grain in an image with AI, keeping its original size, directly in your browser.

Uses a photo restoration model (Real-ESRGAN, compact variant) running in your browser via WebAssembly: it first reconstructs the image at higher resolution while smoothing noise and artifacts, then scales it back down to the original size — a known technique for cleaning up a photo without enlarging it.

Use cases

  • Cleaning up grain in a low-light photo.
  • Reducing noise in a scanned image.
  • Smoothing compression artifacts in a heavily compressed photo.

How it works

  1. 1

    Upload the image

    Low-light photos usually have more noise to clean up.

  2. 2

    Click "Enhance"

    The first time it downloads an AI model (~5 MB).

  3. 3

    Download the result

    Same size as the original image, but cleaner.

Frequently asked questions

Does the result lose detail?

The model balances cleaning up noise with preserving real detail; in very noisy areas, some smoothing is unavoidable.

Why does it use a super-resolution model to reduce noise?

It's the same technology: the model reconstructs a clean image at higher resolution and then scales it back to the original size, taking advantage of how that process naturally smooths out noise.

Related tools

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