QR Code Mosaic (Manual Mask)
Upload an image, drag to select areas, apply pixelation/blur/cover, then download.
No regions yet (draw on the image)
What is Qr Code Mosaic
Redact part of an image without a full editor: upload a picture — a QR code, a screenshot, a document photo — drag rectangles over the sensitive areas, then apply pixelate, blur or a solid cover color and download the result. Processing runs on a canvas in your browser. Sign-in required.
How to use Qr Code Mosaic
- Upload a JPG/PNG/WebP image
- Drag rectangles over the areas to hide
- Pick pixelate, blur or cover, tune strength and download
Frequently asked questions
Is my image uploaded to a server?
No — masking is drawn on a canvas element locally and the download is generated in your browser; the image is not sent anywhere.
Pixelate, blur or cover — which hides best?
Cover is the most irreversible since it replaces pixels with a solid color. Pixelate and blur degrade detail but can leave hints of shapes and colors, so prefer cover for QR codes and serial numbers.
Can I adjust a region after drawing it?
Drawn regions are listed in the Regions panel where you can remove them; clear-all wipes the set. There's no undo for a single stroke, so redraw if a rectangle is off.
Is Qr Code Mosaic free?
Qr Code Mosaic is completely free — open the page and use every feature with no hidden charges.
Do I need to download or install Qr Code Mosaic?
No download or installation is needed. It is an online tool that runs in the browser on your phone, tablet and computer.
Do I need an account to use Qr Code Mosaic?
No. Use the tool right away — no account or sign-in required.
Does Qr Code Mosaic work on mobile?
Yes. The page is fully responsive and works on phones, tablets and desktop browsers.