LipSync.video

You upload a short video, set your lip sync options, and LipSync.video returns a clip where the mouth movements match the audio.

MP4 and MOV files work.

Clips need to run 10 to 30 seconds and stay under 30MB, so this is built for short pieces, not full-length footage.

LipSync.video is a free AI lip sync generator that runs in the browser, with no subscription and no sign-up.

That removes the usual barrier to testing a tool like this.

Processing takes minutes, and you can adjust the lip sync settings before you start.

There is one catch to plan for.

Once processing begins, you cannot change or cancel the job, so check your file and settings before you submit.

Because the tool also covers avatar and cartoon style videos, it suits social clips, dubbing experiments and quick animated shorts where a production budget would be overkill.