AI Lip Sync
Upload a face video or photo and any audio track, and the AI rewrites the mouth movements frame by frame so the face appears to speak those exact words.
Drop face video or image
Video (MP4, WebM) or Image (JPG, PNG)Drop audio file
MP3, WAV, M4A, OGGHow It Works
- Upload a video with a face
- Add new audio track
- Download synced video
Tips for Best Results
- Clear frontal face footage
- Clean audio without noise
- Keep clips under 60 seconds
My Videos
No videos yet. Create your first lip sync above!
Why Choose Our AI Lip Sync
Phoneme-Level Accuracy
The model breaks audio into individual phonemes and shapes the mouth to each one, so hard consonants and open vowels look exactly as they should.
Language Independent
Because the model learns mouth shapes from speech acoustics rather than text, it handles any spoken language, accent, or dialect without separate training.
Face Identity Preserved
Jaw, cheek, and lip geometry are animated without altering the person's appearance, skin tone, or the video background behind them.
Any Audio Source
Supply an MP3, WAV, M4A, or OGG file, whether it is a voiceover, dubbed track, or a text-to-speech file, and the lip sync follows it exactly.
Popular Use Cases
How It Works
AI Lip Synchronization Engine
The model reads audio waveforms to extract the timing and shape of each phoneme in the speech. Those shapes are then projected onto the face in every frame using a neural network that was trained on a large dataset of talking-head video.
Head pose, lighting, and the area around the mouth are kept from the original footage, so only the lip region changes. This approach works regardless of the spoken language because the mapping is acoustic, not text-based.
Frequently Asked Questions
You upload a face video or a still image and a separate audio file. The AI detects the face, analyzes the audio for phoneme timing, and renders new mouth movements onto the face so it appears to speak the audio. The output is a video file with the original background and appearance intact.
For the face source, you can upload MP4, WebM, or MOV video files, or a JPG or PNG still image. Audio files can be MP3, WAV, M4A, or OGG. For the best output, use a well-lit source where the face is clearly visible and facing roughly toward the camera.
Processing time depends mostly on the length of the audio and the duration of the face video. Shorter clips finish faster; longer videos take proportionally more time. A timer in the interface shows how long the current job has been running so you know it is still active.
Your uploaded face media and audio are processed securely and are not shared with third parties. The generated video is yours to download and the original files are not used for model training.
Output quality depends largely on the source material. A well-lit face that is clearly visible and mostly forward-facing produces the tightest mouth tracking. The AI blends the animated lip region into the surrounding face naturally, so the result does not look composited. Visible compression artifacts in the source video will carry through to the output.
Yes. Each job is independent, so you can reuse an audio track with a different face video or photo in a separate upload. This is useful when you want the same voiceover delivered by multiple presenters or characters without re-recording.
No. You upload two files, press the button, and download the video. There is no timeline editing, no frame-by-frame adjustment, and no knowledge of audio formats required. The only thing that affects the result is the quality of what you bring in.
The output is a video file. You can play it directly in any browser or video player, upload it to social platforms, or drop it into a video editing timeline for further production work.
The generated video is yours to use as you see fit. Keep in mind that you are responsible for having the rights to the face footage and audio you upload. If you own both, the output is yours for any project, including commercial work.
Manual lip sync in video software means rotoscoping the mouth area frame by frame, a process that takes hours per minute of footage and requires careful masking so the edit does not look artificial. This tool does that in a single pass, automatically. The AI was trained on talking-head video specifically to handle the motion and blending, which is hard to replicate by hand.
Free AI Lip Sync Video: Match Lips to Any Audio Online vs Other Methods
| Feature | Luxoret AI | Manual / Traditional | Other Tools |
|---|---|---|---|
| Cost per Use | $0.45 | $200-$1000+ per project | $0.20-$0.50 per video |
| Speed | Minutes, not hours | Hours of manual editing | Varies by complexity |
| Skill Required | None — AI handles it | Video editing expertise | Moderate learning curve |
| Software | Browser-based, nothing to install | Expensive editing suite | Desktop app required |
| Quality | AI-enhanced, professional | Depends on editor skill | Template-dependent |
| Revisions | Instant re-processing | Re-edit from scratch | Limited by plan |