Blur faces in a photo
Finds the faces in a photo and blurs them, so a picture of a crowd or a classroom can be shared without identifying everyone in it. Detection runs in your browser, which matters more here than for most tools: uploading photos of people in order to anonymise them rather defeats the exercise.
How to blur faces in a photo
- 1Drop in the photoThe detection model downloads from this site on first use, then stays cached.
- 2Set blur strength and paddingPadding widens the blurred area around each detected face, which covers hairlines and jawlines the detector draws tightly.
- 3Check every face, then downloadLook over the result before sharing it. A face the detector missed is not blurred.
Questions
Is my image uploaded anywhere?
No. The image is read by your browser and processed on a canvas in the page. It never reaches a server, so nothing is uploaded and no copy is kept anywhere.
Will it catch every face?
No, and this is the thing to be careful about. Faces in profile, partly hidden, very small in frame, or in poor light are missed. Always check the output yourself before publishing rather than trusting the detector.
Can the blur be reversed?
The blurred pixels are averaged together and the original values are gone, so it cannot be undone from the exported image. Do keep in mind that the unblurred original is still on your disk.
How much blur is enough?
Enough that no facial features are distinguishable at full zoom. A light blur that still shows the shape of eyes and mouth can be defeated. Increase the strength and check at 100 percent.
Can I blur something other than a face?
No. It blurs where the detector finds faces. For a licence plate or a document on a desk, crop it out or paint over it in an editor.