Is the Image Denoiser free?

Yes, completely free with no registration or limits.

Does it upload images to a server?

No. All processing happens in your browser via Canvas API. Images never leave your device.

What algorithms are available?

Gaussian Blur for uniform noise reduction and Median Filter for salt-and-pepper noise removal.

What formats are supported?

JPG, PNG, WebP, BMP, and other common image formats.

Can I use it on mobile?

Yes. The tool is fully responsive and works on all devices.

100% safe. Everything runs locally in your browser. No data is ever uploaded to any server.

Free Image Denoiser - Online Noise Reduction Tool

Upload Image

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Click or drag & drop an image here
Supports JPG / PNG / WebP

Algorithm: Strength: 3

FAQ

Does denoising affect image quality?

Denoising smooths the image, which reduces noise but may slightly soften fine details. Use lower strength values to balance noise reduction and detail preservation.

What's the difference between Gaussian and Median?

Gaussian Blur applies a weighted average across the image, ideal for sensor noise. Median Filter replaces each pixel with the median of its neighbors, excellent for salt-and-pepper noise (random black/white pixels).

Does it support large images?

Yes, but very large images (5000px+) may process slower since everything runs in your browser.

What format is the output?

The denoised image is saved as PNG with lossless compression and transparency support.

Is my image data secure?

100% secure. All computation happens on your device — Algorithm, Strength and other inputs stay in your browser. Images are never uploaded to any server.

🖼️ Image Denoiser