1. Choose a video

Up to 60 seconds, 100 MB, and 1920 pixels on the long edge. Many iPhones record 4K by default, which is too large: set the camera to 1080p, or trim the clip first.

2. Pick the faces to blur

Move the slider to a frame where the person is clearly visible. Click a face outlined in dashed lines to select it, or drag a box around a face the tool missed. Click a selected face again, or use Remove below, to undo a wrong choice. Select each person once; tracking covers the rest of the clip, before and after this frame.

Blur style Strong Soft

Selected faces

No faces selected yet.

3. Check for other faces

The second check scans the whole clip again at a larger size, to find faces you did not select. Nothing is blurred automatically here. For each face found, choose whether to blur that person too.

4. Review before you download

Watch the whole video. Check every frame where a face should be hidden. The download unlocks once you have watched it through and ticked the box below.

I have checked the whole video, and every face that should be hidden is covered. I am responsible for what I share.

Download blurred video

How it works

Everything happens in your browser. Each face you select is followed through the whole clip, before and after the frame you picked, and blurred wherever it appears. A second check then looks for faces you did not select and lists them for you to decide. The result is saved as an MP4 with the original sound.

Some components are open source. Their licence notices are on the open-source licences page.

No tool can guarantee that every face is hidden. Faces that appear for less than a fifth of a second, or are turned fully away, can be missed. Always check the output before you share it.

Blur Faces in a Video