Mosaic / Blur Faces & Sensitive Info
Free tool to blur or pixelate faces, license plates, addresses and other sensitive information. 100% in-browser, no signup.
PNG JPG WebP HEICor paste with Ctrl+V / ⌘+V
Images never leave your browser
About the Mosaic / Blur tool
Hide faces, addresses, license plates, and sensitive documents in your photos. Works with rectangle selection or free brush painting.
How it works
Drag & drop, paste with Ctrl+V, or pick a file.
Draw a rectangle with "Rectangle" mode, or brush it on freely with "Brush" mode. Adjust the block size for stronger/finer pixelation.
Export as JPG or PNG and share — ready for social posts, blogs, reports.
Common use cases
Protect bystanders on social media
Blur strangers' faces, house numbers, or license plates before posting to Twitter/X, Instagram or TikTok.
Share screenshots safely
Cover names, addresses, account numbers on receipts, invoices, screen captures before sharing.
Journalism / blog photos
Blur passersby to respect privacy rights in news articles, YouTube thumbnails, or blog hero images.
Kids' events
Share school or preschool event photos online while blurring unrelated children's faces.
FAQ
Does it detect faces automatically?
Not yet — selection is manual (rectangle or brush). Automatic face detection is planned for a future release.
Can I adjust the mosaic strength?
Yes — use the slider to change block size. Larger blocks = coarser pixelation.
Are my images uploaded anywhere?
No. Everything runs entirely in your browser. Safe for private and sensitive images.
Can the mosaic be undone?
Once you download a mosaic'd image, the original pixels are destroyed and cannot be recovered. That's the point — your privacy is protected.
Which image formats are supported?
JPG, PNG, WebP and HEIC (iPhone photos work directly).