Free AI Lip Sync
Match any audio to any video with AI lip sync. Paste a script or upload a voice track, pick a face, and download a finished video. Short clips render in two to five minutes.
Match any audio to any video with AI lip sync. Paste a script or upload a voice track, pick a face, and download a finished video. Short clips render in two to five minutes.
Key featuresEverything You Can Do with our AI Lip Sync
Text or audio to lip-sync video
Paste a script or drop in a voice file. The text to video engine aligns every word to natural mouth movements and renders a finished talking video. No timeline, no keyframes, no editing software.
Preserve voice across languages
Clone your voice from a 15-second sample with AI voice cloning and keep the same tone in every lip-synced video. Translate the script into 177+ languages and dialects without re-recording a single line.
Talking photo from a single image
Turn any portrait into a speaking presenter from a single still. The AI photo avatar animates the face with matched lip movement, natural head motion and expressive delivery, so a headshot becomes a video without a camera.
Multi-speaker and multi-face sync
Lip sync every face in a scene, not only the main speaker. Dialogue, group videos and duet scenes hold alignment throughout. Each face gets its own audio track, matched to its own lines frame by frame.
Studio-grade realism with Custom Motion
Direct the performance, not only the lips. Custom Motion takes prompts for gesture, posture and expression, so the same script can read as a calm explainer or a punchy social hook. Delivered by a lifelike AI spokesperson.
Use cases
Manual dubbing takes weeks per language. Upload a video, pick a language, and the AI video translator re-voices it and re-syncs the lips to the new audio. Ship across 30 markets in an afternoon.
Need a localised soundtrack without re-rendering the face? AI dubbing translates the audio only, keeps the original voice character, and costs fewer credits per minute. Same script, every language, faster turnaround.
Repurpose one English upload into native lip-synced versions for every market. The YouTube video translator handles voice cloning, lip sync and captions in one pass, so a single channel serves audiences who never watched the original.
Policy changed? Edit the script, regenerate with lip sync, and republish. The AI video editor lets you swap a paragraph or a language without booking talent again.
Take one UGC hook and localise it across regions rather than reshooting per market. Dub each variant into the local language with matched lip movement, then A/B test in days instead of months.
Turn any portrait into a singing photo. Drop in a vocal track, pick a face, and the lip movement syncs to the mouth shapes in the audio. Works for promos, fan edits and personalised birthday videos.
How it worksHow AI lip sync works
Four steps from upload to share-ready download. Short clips render in two to five minutes.
Drop in your video, image, or avatar. Files render in HD, with 4K available for finished work.
Paste a script for AI narration, upload an existing voice track, or clone your own voice.
The model aligns every phoneme to lip movements with natural AI accuracy, re-rendering the face.
Preview, tweak the timing, and export as MP4. Send straight to social, an LMS, or your team.
AI lip sync matches the mouth movements in a video to any audio track. The model breaks the audio into phonemes, maps each one to a mouth shape, and re-renders the face frame by frame so the speech looks natural even when the audio was generated from text or translated.
Yes. HeyGen offers a free AI lip sync video plan with lip-synced videos included, no credit card required. The free lip sync tier covers short clips for testing, social posts, and personal projects. Upgrade only when you need longer videos or commercial output.
Paste your script into the AI lip sync generator, pick a voice, choose a video or photo for the face, and click generate. The AI lip sync tool writes the audio, syncs the lips, and renders the finished video. Short videos finish in under five minutes.
The best lip sync AI tools track more than the lips. HeyGen's Avatar V advanced AI handles upper-body movement, jaw and tongue dynamics, and Custom Motion to produce realistic AI talking avatars that lip sync perfectly.
Modern AI lip syncing matches or beats hand-animated dubbing for most footage. Sync accuracy is frame-level: high-quality lip alignment to facial movements adapts to head turns and lighting. Accurate lip output is the default.
Yes. Lip sync works across 177+ languages and dialects with voice cloning that preserves the speaker's tone. Würth Group shipped a 65-minute presentation in eight languages in four days and cut translation costs by 80%.
Final ready-to-share video files export as MP4 in 16:9, 9:16, and 1:1 ratios, with optional captions from the subtitle generator. Vertical 9:16 fits TikTok, Reels, and Shorts; 16:9 is ready for YouTube, LinkedIn, or an LMS.
Yes, that's the most common use case. The same pipeline translates the script, clones the voice, syncs audio in the target language, and re-syncs the lip-sync to match. Use dubbing and video translation to reach 30 markets without splitting tools or workflows.
Both work. Upload an audio file and the AI syncs the lips to it directly to synchronize lip movements with your track. Or clone your voice from a 15-second sample and have the model speak any script in your own voice across every language.
Yes. Combine lip sync with face swap to replace the on-screen talking head and re-sync the audio in the same pass. Useful for UGC, paid ads, and marketing videos when you want to test a new face without reshooting.
ChatGPT itself does not generate video or lip sync output. HeyGen runs natively inside the ChatGPT App Store, so you can prompt ChatGPT to create talking videos with lip sync and get the finished MP4 back. The video model does the lip sync work; ChatGPT is the front door.
Short lipsync clips (under one minute) render in two to five minutes. Longer videos and high-res exports take 10 to 20 minutes. Multilingual batch jobs (one script, ten languages) finish in roughly the time of a single render plus translation overhead.
Yes. The HeyGen API offers pay-as-you-go pricing at $0.05 per second for Avatar V and Avatar IV lip sync output, with a $5 minimum top-up. No subscription required for API access. Use it for personalization at scale, in-app video generation, or batch dubbing pipelines.
Yes, on any paid plan. Generated videos can be used in video ads, client deliverables, paid social, and published content. Voice cloning requires consent from the voice owner. Avatar use follows the standard usage license shipped with your plan.
Yes. Lip sync can align a host or multiple speakers with recorded dialogue. If you are starting from text, a PDF, or a URL and need an episodic audio or video format, the AI podcast generator can create the podcast with AI voices and MP3 or MP4 output.
Yes. If your slides and speaker notes are the source, PPT to video can turn them into narrated scenes with an avatar, script, captions, and synchronized speech.
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