Face swap video tools replace a face in existing footage with a different one, mapping the new face onto a person frame by frame so it moves with the original. You provide a source photo or face and a target clip, and the tool blends them, matching expression and head movement. Examples include AI Face Swap, Remaker AI, Pica AI, and Vidnoz AI.
People use face swaps for fun edits, memes, and movie-style remixes, and creators sometimes use them to put a consistent character into different scenes. There's a real responsibility here, though. Swapping someone's face without their consent can be harmful and is often illegal, and deepfakes used to deceive carry legal and ethical risk. Only swap faces you have permission to use, label edited content clearly, and never use these tools to impersonate or defame a real person.