Image Blur / Mosaic
Blur or mosaic specific parts of an image to protect privacy.
Drag and drop or click to upload
Drag to apply blur/mosaic effect to areas
What is Image Blur/Mosaic?
The Image Blur/Mosaic tool obscures or pixelates specific areas of photos and images to protect personal information. You can easily cover faces, license plates, and sensitive details by simply dragging your mouse over the target area. Choose between a smooth Gaussian blur or a pixelated mosaic effect. All processing happens in your browser for complete privacy.
How It Works
Image blur uses Canvas API's filter property or convolution filters. Gaussian blur replaces each pixel with a weighted average of surrounding pixels, giving higher weight to closer pixels following a Gaussian distribution. A larger blur radius averages a wider area, producing a more blurred result.
Image Blur Usage Guide
Image blur is widely used for privacy protection, background defocus effects, and design work. It effectively hides personal information (names, phone numbers, emails) in screenshots or emphasizes subjects by blurring backgrounds.
Effect varies significantly with blur strength. Light blur (radius 3-5px) creates a soft atmosphere, while heavy blur (radius 15-30px) completely obscures content. For privacy purposes, apply strong enough blur that original content cannot be recovered. Choose between full and partial blur based on your needs. Blurred photos used as blog hero images or banner backgrounds improve text readability.
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