How to Blur Faces in Photoshop (Blur, Pixelate, Several Faces)

Photoshop gives you full control over how a face is hidden: a soft blur, a pixel mosaic, a feathered edge, and an edit you can change later. Here is the method that works in every recent version, plus a faster way for photos with many people.

Blur one face with Gaussian Blur

1. Open the photo and duplicate the background layer (Layer → Duplicate Layer), so the original stays untouched.
2. Convert the copy to a Smart Object (right-click the layer → Convert to Smart Object). Filters on a Smart Object stay editable, so you can change the strength later.
3. Select the face with the Elliptical Marquee Tool (press M, Shift+M to switch from the rectangle). Drag an oval a little larger than the face, including hair and ears.
4. Soften the edge: Select → Modify → Feather, 10–20 px for a typical photo. Without it, the blur ends in a hard line.
5. Apply the blur: Filter → Blur → Gaussian Blur. Raise the radius until the face cannot be recognised at full size. For a face about 300 px wide, a radius of 25–40 px is usually enough.
6. Deselect with Ctrl/Cmd + D and zoom to 100% to check.

Because the filter sits on a Smart Object, the selection is stored as a filter mask. Double-click Gaussian Blur in the Layers panel to change the radius at any time.

Pixelate a face with Mosaic

Pixelation is easier to recognise as deliberate redaction, and it is harder to "undo" by sharpening than a light blur.

1. Make the selection as above (no feather needed for a blocky look).
2. Go to Filter → Pixelate → Mosaic.
3. Set the Cell Size so the face becomes roughly 8–12 blocks across. On a 300 px face, that is a cell size of 25–40.

For the strongest protection, use a filled black shape instead: draw a selection, then Edit → Fill → Black.

Blur several faces at once

Selecting faces one by one gets slow in a crowd shot. Two faster ways in Photoshop:

• Hold Shift while drawing with the Elliptical Marquee to add each new oval to the same selection, then feather and blur once.
• Blur everything, then reveal: apply Gaussian Blur to the whole Smart Object, then paint black on the filter mask everywhere except the faces. This is quicker when most of the people need hiding.

Photoshop's Select → Subject finds people, not faces, so it selects whole bodies. It does not help much here.

Make sure the blur actually hides the face

• Check at 100%, not zoomed out. A blur that looks strong in a thumbnail can still show recognisable features on a large screen.
• Do not use a light blur on high-resolution photos. If someone could recognise the person, increase the radius or switch to Mosaic.
• Flatten before sharing. Export with File → Export → Export As (JPG or PNG). A layered PSD or a Smart Object file still contains the original face.
• Strip the metadata if location matters: in Export As, set Metadata to None.

When Photoshop is more than you need

For a group photo, a school event or a street shot with a dozen strangers, drawing and checking each oval takes longer than the edit is worth. The free photo face blur finds every face automatically in your browser. Tap anyone who should stay clear, drag a box over anything it missed, pick blur, pixelate or black box, and download. The photo is never uploaded, and it is free.

For videos, Photoshop is not the right tool at all. Even its video timeline cannot track a moving face. Use an editor with mask tracking, see how to blur faces in Premiere Pro, or blur faces in video automatically and choose who stays clear.

Quick answers

What is the best blur for faces in Photoshop? Gaussian Blur on a Smart Object with a feathered selection for a soft look; Mosaic or a black fill when the face must be unrecognisable.

How do I blur a face in Photoshop without blurring the background? Select only the face with the Elliptical Marquee before applying the filter. Everything outside the selection stays sharp.

Can I undo a face blur later? Only while the file is a layered PSD with a Smart Object. Once exported as JPG, the blur is permanent, which is what you want for sharing.