AI Lip Sync Generator
Make a character speak: feed a photo or clip plus your line, and the mouth follows the words. Veo 3.1 syncs dialogue natively. Free credits on signup.
What can you create with AI Lip Sync Generator?
AI lip sync from a photo or clip
Give it a face and a line, and the mouth follows the words. The face can be a still photo or an existing clip; the line can be typed or supplied as audio. What separates a usable result from an uncanny one is almost always the source image — a front-facing shot with the mouth visible and evenly lit will sync far more convincingly than a three-quarter view in shadow.
Dialogue-synced audio with Veo 3.1
Veo 3.1 is the model that does this natively, generating the audio and the picture together rather than animating a mouth to a separate track. That matters because the timing is decided once, inside the model, instead of being aligned afterwards. The result holds up at normal playback speed, which is where post-hoc lip-sync tools usually start to drift. Post-hoc lip-sync tools align a mouth to an existing track and drift as the clip runs on.
Languages and accents
It handles ordinary conversational English reliably. Other languages work, with the caveat that phoneme shapes the model has seen less of will look approximate rather than exact — plosives and rounded vowels are the tells. Strong regional accents are fine for pacing but can produce mouth shapes that read as generic. For anything client-facing in a language you do not speak, get a native speaker to review it.
How long a synced clip can run
A synced clip runs as long as the underlying model allows, which tops out at sixteen seconds for a single generation. That is enough for a line or two of dialogue, not a monologue. For longer speech, cut it into beats and generate each one separately — that is also better direction, since it forces a shot change roughly where a viewer would expect one.
Lip sync for ads, explainers and dubbing
The common uses are ads with a spokesperson you do not have to book, explainers where a character walks through a product, and rough dubbing passes for content moving between languages. Paid plans carry a full commercial license. The obvious line to stay behind: do not put words in the mouth of a real, identifiable person who has not agreed to say them.
What usually goes wrong, and how to avoid it
Sync quality is decided by the source image more than by the prompt. A face at an angle, in shadow, or small in frame will produce mouth movement that is approximately right and obviously synthetic. Front-facing, evenly lit, face filling a decent share of the frame — get those and the result is usually usable first try. Long lines are the other trap: split them at natural pauses.
How to use AI Lip Sync Generator
- 1Sign in (free)
Create a SoonMaker account in one click with Google. You'll get free credits immediately — no card required.
- 2Upload a photo or describe the shot
Most video tools start from a still image — drop one in and it becomes the first frame. For text-to-video, just describe the scene, the motion, and the camera move.
- 3Pick a model and render
Choose from 16 video models depending on what matters: Veo 3.1 for synced audio, Kling 3.0 for stylised motion, Seedance 2.0 for commercial polish. Hit Generate and download the clip.