Image Redact (Mosaic)
Hide private info with mosaic, solid color, or marker. Files never leave your browser.
Drag & drop or click to select an image
JPG, PNG, WebP, AVIF supportedDrag to select the area to hide. In brush mode, it paints continuously as you drag.
How to Use
1
Upload image
Drag & drop or click to select an image with areas to hide.
2
Pick tool and mode
Choose between mosaic, solid color, or black marker, then rectangle or brush mode.
3
Paint over and download
Drag over the areas to hide, then download the result.
FAQ
Will the original image be changed?
No. The original is preserved and the edited image is downloaded separately.
Can mosaic be reversed?
No. Mosaic overwrites the original pixels, so it cannot be restored — safe for hiding sensitive info.
Which formats are supported?
JPG, PNG, WebP, AVIF — any format the browser can read.
Is undo supported?
Yes, multiple levels of undo are available.
Are files uploaded to a server?
No. All processing happens in your browser and no data is transmitted.
