How to use Blur faces
- 1
Pick a photo (JPG, PNG, WebP, AVIF, GIF or BMP). Faces are found automatically and marked with ovals.
- 2
Drag over anything else you want to hide, such as a number plate, a house number or a name badge.
- 3
Press × on an area you want to keep sharp, and choose Blur or Pixelate and how strong it should be.
- 4
Press "Blur and save" and download the photo.
What this tool does
Blur faces hides people's faces and other private details in a photo. It finds faces for you, lets you add any other area by dragging, and blurs or pixelates them at full resolution.
Features
- Automatic face finding, including smaller faces in big group photos.
- Add any area by dragging: number plates, house numbers, badges, screens.
- Blur or Pixelate, with a strength slider and a live preview.
- Oval areas for faces, so the blur follows the shape of the head.
- Full resolution, in the photo's own format (GIF and BMP are saved as PNG).
Limits
- Faces that are tiny, turned away or covered may not be found; mark them yourself.
- One photo at a time.
- Videos aren't supported.
- EXIF data such as GPS location is not kept in the saved photo, which also helps privacy.
Where your photo is processed
This tool works in two parts. To find the faces, your browser sends a smaller copy of the photo to our own server over an encrypted connection; the server looks for faces in memory, returns their positions and keeps nothing. The blurring and saving then happen in your browser, on the full-size photo, so the finished picture comes straight from your device.
Frequently asked questions
Does it find every face?
It finds most faces that look towards the camera. Faces that are very small, turned away, partly hidden or in deep shadow can be missed, so always check the preview and drag over any face it didn't mark.
Can someone undo the blur?
The saved photo contains only the blurred pixels, not the original ones, so the blur can't simply be removed. For the strongest protection, choose Pixelate at a high strength, which leaves very little detail behind.
How are the faces found?
A small open face-detection model (UltraFace, MIT licence) runs on our server. Your browser sends it a smaller copy of the photo, at most 1024 pixels wide or tall, and gets back only where the faces are.
Can I blur a number plate or text?
Yes. Drag a box over it. Boxes you draw are rectangles; faces found automatically are ovals.
Is there a daily limit?
Faces are found automatically in 100 photos a day without an account, and in 300 with a free account. After that you can still mark the faces yourself by dragging over them.
Where is my photo processed?
The full-size photo is blurred in your browser and saved from there. Only the smaller copy used to find the faces is sent to our server, over an encrypted connection, and it is checked in memory and not stored.