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Lip Sync AI

Upload video and audio to create lip sync videos with AI

Lip Sync AI - Product Image

What is Lip Sync AI?

Lip Sync AI is a free online AI video generator that creates perfectly lip-synced videos by uploading any video and audio file. With 5 sync modes, multi-speaker detection, and support for any language, it delivers frame-accurate mouth movements in up to 4K resolution. The tool preserves original facial expressions while syncing lips, avoiding the dead-eyed look common in other solutions.

Key capabilities include:

  • Voice-to-lip synchronization with phoneme-level precision
  • Talking avatar generation from static portraits with natural head motion and micro-expressions
  • Multilingual video dubbing across 40+ language pairs with automatic lip re-syncing
  • Real-time preview with timeline scrubbing for instant verification

Whether you're dubbing films for global audiences, creating multilingual marketing content, or building virtual presenters, Lip Sync AI streamlines the process with sub-frame accuracy and batch processing for scalable localization. Simply upload your media, choose a sync mode, preview, and export your professional-grade lip-synced video in minutes.

How to use Lip Sync AI

  1. 1

    Upload your video or portrait photo and audio track.

  2. 2

    Select one of 5 sync modes based on your project needs.

  3. 3

    Check the real-time preview with timeline scrubbing to verify sync.

  4. 4

    Export your video in up to 4K resolution.

Key features

Frame-accurate phoneme-level lip sync matching across 40+ languages

Talking avatar generation from static portraits with natural head motion and micro-expressions

Multilingual video dubbing with automatic lip re-syncing and multi-speaker detection

Real-time preview with timeline scrubbing for instant synchronization verification

Preserves original facial expressions and emotional performance while syncing lips

Use cases

  • Film and video dubbing for global localization
  • Creating multilingual marketing videos for international audiences
  • Generating talking avatar presenters for corporate training or e-learning
  • Animating static portraits for virtual spokespeople and digital assistants
  • Producing product demos with AI-generated lip-synced narrators

Best for

Video editorsContent creatorsMarketersEducatorsFilmmakersDigital artists

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Frequently asked questions about Lip Sync AI

Common questions to help you decide if Lip Sync AI is right for you.

Lip Sync AI offers a free trial with basic features. For full resolution and advanced capabilities, paid plans are available. Check the official pricing page for details.

Upload a video or photo and an audio track. The AI analyzes phonemes in the audio and generates frame-accurate lip movements, preserving facial expressions. You can preview in real time and export in up to 4K.

It supports over 40 languages, including English, Spanish, Mandarin, French, German, Japanese, and more, with native pronunciation models for authentic dubbing.

Yes, you can upload a portrait photo and an audio file to generate an animated talking avatar with natural head motion, micro-expressions, and lip sync.

Yes, the multi-speaker detection feature automatically identifies and tracks multiple characters in a scene, applying individual lip sync for each.

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