MozFace Free Online Tool
Blur Faces in Photos Online,
100% Free
No installation needed. Pick an image in your browser, drag over the part you want to hide, and you're done. No sign-up required.
Drag & drop an image here
or tap to choose a photo (JPG, PNG, WebP supported)
Choose ImageDrag with your finger or mouse to select the area you want to hide
Large images are automatically resized to a max of 2048px — plenty of quality for social media and web use.
Tired of selecting faces one by one? Try the app.
This tool is a simple manual selector. The MozFace app uses AI to automatically detect every face the moment you pick a photo, blurring them all at once — then you just tap to reveal the ones you want to show.
Learn more about MozFaceHow to use it — 3 steps
Choose a photo
Drag and drop, or tap to select a photo from your device.
Drag to select
Drag over the face or area you want to hide, with your finger or mouse.
Save it
The mosaic or blur is applied instantly. Hit "Save Image" to download it as a PNG.
Frequently Asked Questions
Is my image really never sent to a server?
Correct. All image processing happens in JavaScript inside your browser. Your image is never uploaded to a server, and your image data never leaves your device.
Is it free?
Yes, completely free. No sign-up or payment required, and you can use it as many times as you like.
Does it work on mobile?
Yes. You can drag with your finger to select an area. It works in the major browsers on both iPhone and Android.
How is this different from the MozFace app?
This online tool is a simple utility where you manually drag to select an area to mosaic or blur. The MozFace app uses AI to automatically detect every face as soon as you pick a photo, and blurs them all at once — you just tap to reveal the people you want to show. For group photos with many people, the app is much faster and helps make sure no one is missed.
Will the saved image lose quality?
Very large images are automatically resized to a maximum of 2048px for processing. That's plenty of quality for typical social media posts and web use.
MozFace
Just pick a photo and every face gets blurred automatically. Tap to reveal only the people you want to show. Works fully offline.
Learn more about MozFace