You filmed in public and a stranger walked through the shot. Or you shot a talk wide and want a vertical clip that keeps the speaker in the middle. Both jobs need the same thing: a face that the editor can follow, frame by frame, without you keyframing it by hand.
What face tracking does in Arsaze
Draw a box around a face, or describe it, and Arsaze follows it through the shot. Then pick what should happen to it, in one click:
- Blur or pixelate it, for bystanders, kids or anyone who did not agree to be filmed.
- Cover it with a shape or an image.
- Follow cam: reframe the shot so the face stays centered, which is how a wide talk becomes a clean 9:16 clip.
- Spotlight or magnify it, to pull attention to one person in a group.
- Label it with a name that moves with the person.
- Lock on or steady it, to calm a shaky handheld shot.
It works the same way on things that are not faces: a product in your hand, a logo on a shirt or a number plate on a passing car.
When it loses the face
People turn away, walk behind each other and leave the frame. When the tracker loses the face, it shows you where, and picks the face up again when it comes back into view. If a stretch is wrong, draw the box again on a good frame and track from there.
Ask your AI to do it
If you edit with an assistant, you can ask in plain words: "Blur the faces of everyone except me in the second clip." or "Make a vertical version that follows the speaker." It runs the same tracking and you can adjust the result by hand. See how to connect Claude or any other assistant.
What it costs
In the desktop app, tracking runs on your own computer and is free on every plan, including Free, with no credits used. It also works on footage that never leaves your computer, in a private project. Exports from the desktop app have no watermark.
Tips for a clean track
- Draw the box tight around the face, not the whole head and shoulders.
- Start the track on a frame where the face is sharp and facing the camera.
- For a crowd, track each face you need on its own.
- For a follow cam, leave a little headroom in your framing so the reframed shot does not cut off the top of the head.
Try it
Open a project in the desktop app, select the clip and choose Track. The full feature page is motion tracking in Arsaze, and the free plan is explained in everything you get on Arsaze Free.
Questions people ask
Is there a free video editor with face tracking?
Yes. Arsaze tracks a face through a shot and then blurs, covers, follows, spotlights or labels it. In the Arsaze desktop app, tracking runs on your own computer and is free on every plan, with no watermark on exports.
How do I blur a moving face in a video?
In Arsaze, draw a box around the face, let it track through the shot and choose Blur. The blur moves with the face. If the tracker loses the face for a stretch, draw the box again on a good frame and track from there.
Can a video editor keep a speaker centered automatically?
Yes. Arsaze's follow cam reframes a shot around a tracked face, so a wide talk or interview becomes a vertical clip with the speaker kept in the middle.
Can I track things other than faces?
Yes. Arsaze tracks products, logos, number plates and other objects the same way, and applies the same blur, cover, follow, spotlight, label and steady effects.