What is AI lip sync and how does it work?

AI lip sync is a technology that takes a face, from a photo or video, and an audio track, then generates realistic mouth, jaw, and facial movements that match the spoken words. On invideo, you upload your face input and audio, and the AI analyzes the speech waveform to map phonemes to corresponding mouth shapes frame by frame. It also adds subtle secondary motion like head tilts, blinking, and eyebrow raises so the result looks natural rather than robotic. The entire process runs in your browser and typically renders a clip in under a minute.

Can I lip sync a still photo instead of a video?

Yes. This is one of the most popular use cases. You upload a single portrait photo and pair it with an audio file or AI-generated voiceover. The AI animates the face from scratch, generating head movement, blinking, and precise lip sync from a completely static image. The output is a full video clip that looks like the person in the photo is actually speaking. It works best with front-facing portraits where the mouth and jaw are clearly visible, but it handles slight angles too.

Does AI lip sync work in languages other than English?

Yes. invideo supports 50+ languages for voiceovers and voice cloning, and the lip sync feature handles all of them. The AI maps audio phonemes to mouth shapes regardless of language, so it works equally well with Spanish, Hindi, Mandarin, Arabic, Japanese, and others. A common workflow is to record your audio in one language, use invideo's dubbing tools to translate it, and then run lip sync on the translated audio so the mouth movements match the new language. This is especially useful for creators and businesses producing content for international audiences.

Is the AI lip sync generator on invideo free?

You can start using lip sync on invideo for free. The free tier gives you access to the lip sync feature and a limited number of generative credits. Each lip sync generation consumes credits based on the length of the clip. No credit card is required to sign up and try it.

What kind of audio input does the lip sync tool accept?

You can upload pre-recorded audio files (MP3, WAV, etc.), record a voiceover directly inside invideo, or generate speech using invideo text-to-speech in 50+ languages. You can also clone your own voice with just a 30-second recording and use that cloned voice as the audio input. The feature works with spoken dialogue, narration, and singing, though spoken word generally produces the most accurate sync.

Can I use AI lip sync for commercial projects?

Yes. All content generated on invideo paid plans is cleared for commercial use. This includes lip sync videos used in ads, marketing campaigns, product demos, e-learning courses, and client deliverables. Just make sure you have the rights to the face and audio you use, if you're using your own likeness or an AI avatar you created, you're covered. invideo's identity verification for avatars and AI Twins adds an extra layer of compliance.

AI Lip Sync

Bring any photo or video to life. AI Lip Sync matches mouth movements to any voice or audio, creating realistic and expressive videos instantly. Perfect for content, storytelling, and animation.

Create with AI Lip Sync

One Video, Every Language

Shoot once. Speak to the world. Turn a single take into versions that play naturally in Spanish, Hindi, Japanese, or any language your audience speaks.

Flubbed a line? Fix it

Script changed? Client changed their mind? Rewrite the line, swap the audio, and let the lips catch up. Minutes, not reshoots.

Animate Still Photos

Turn a single portrait into a talking head video. Invideo adds realistic lip movement and subtle facial motion to a completely static image - blinking, head tilts, and jaw movement included.

Script in, presenter out

Don't want to be on camera? Feed a clip and a script. Get a presenter who nails the delivery.

One clip, 50 ad variants

Ads burn creative fast. One shoot, dozens of variants. New hooks, new scripts, new offers. Same face, same setting.

Reach every learner

Good content should not stop at a language barrier. Make lessons, announcements, and training videos feel native to every viewer. Same teacher. Same warmth. Words they actually understand

Features of AI Lip Sync

Photo-to-Video

Upload a single still image and an audio clip, and invideo generates a full video with natural head motion, blinking, and accurate lip sync, not just mouth movement. The result looks like a real person talking.

Multi-Lingual

Works with 50+ languages out of the box. Combine with invideo's voice cloning or AI voiceover tools to dub and lip sync in one seamless workflow, no third-party tools required.

Identity Preservation

The speaker's face stays consistent across the entire clip. No warping, no drift, no identity shifts, even on longer audio tracks. What goes in is exactly what comes out, just animated.

Accurate Mouth Mapping

Handles complex phonemes, fast speech, and whispers. Jaw, lips, and teeth move independently for realistic articulation across languages. Every syllable is mapped to the correct mouth shape.

Expression & Emotion Transfer

Invideo reads the tone of the audio, emphasis, pauses, emotion, and reflects it in facial expressions. Eyebrows, cheeks, and eyes respond naturally alongside the mouth for truly lifelike delivery.

Works with Any Face Input

Accepts front-facing portraits, webcam recordings, AI-generated faces, and existing video clips. No special formatting or resolution requirements, upload and go.