Add Noise to Image
Apply noise effects to your images with adjustable intensity. Choose between Gaussian noise for a grainy effect or Salt & Pepper noise for random black and white pixels. All processing happens in your browser.
Click to upload or drag and drop an image
PNG, JPG, GIF, WebP, BMP (max 10MB)
Why use this tool?
Adding noise to images is useful for testing image processing algorithms, creating artistic effects, simulating real-world conditions, or preparing training data for machine learning models.
- Multiple noise types — Choose between Gaussian and Salt & Pepper noise.
- Adjustable intensity — Control exactly how much noise to apply.
- Live preview — See original and noisy images side by side.
- Privacy-focused — All processing happens in your browser. Images are never uploaded.
How to use
- Upload an image by clicking the upload area or dragging and dropping a file.
- Adjust the Noise Intensity slider to control the amount of noise.
- Select the Noise Type: Gaussian for a grainy effect or Salt & Pepper for random dots.
- Click Apply Noise to see the effect.
- Click Download Result to save the noisy image.
Frequently Asked Questions
This tool supports Gaussian noise (random values added to each pixel) and Salt & Pepper noise (random black and white pixels). You can adjust the intensity for both types.
Yes. All processing happens entirely in your browser. Your images are never uploaded to any server or stored anywhere.
This tool supports all common image formats including PNG, JPEG/JPG, GIF, WebP, BMP, and more. The output is saved as PNG format.