Already have the audio? Make the lips match it
This lip sync tool takes a video and an audio track you already have, and redraws the speaker’s mouth so it moves with the new audio. A re-recorded line, a corrected narration or a cloned-voice track all end up looking like they were said on camera.
How it works
- 1
Pick the video
Upload it, choose one from your library, or paste a URL.
- 2
Paste the audio URL
A public mp3 or wav link, like a file you made with the text to speech tool.
- 3
Dub the video
It usually takes 2 to 4 minutes, and you get a notification when it is ready.
What you can make
Creators fixing a fluffed line
Re-record the one sentence you got wrong and sync it back in, instead of setting up the shot again.
Marketing teams updating a campaign
The price or the date changed after the shoot. Swap the narration and keep the spokesperson’s lips in step.
Faceless channel owners
Give an avatar or presenter clip a voiceover you generated, and make it look spoken rather than dubbed over.
Agencies with their own translations
When a client signs off on a human-recorded translation, sync that exact track instead of letting AI translate.
This lip sync tool takes a video and an audio track you already have, and redraws the speaker’s mouth so it moves with the new audio.
Sync a video to your audioSpecs & limits
| Video input | Upload, library or URL: mp4, mov or webm |
|---|---|
| Audio input | A public mp3 or wav URL, pasted in |
| What it does | Lip-syncs the video to your audio. No translation or voice generation |
| Processing time | Typically 2 to 4 minutes |
| Output | The lip-synced video, saved to your media library |
| Billing | Per second of video |
Tips for better results
- Match the audio length to the video. If the two are far apart, the end may get trimmed, so cut them to the same length first.
- Keep the face visible and turned toward the camera. Profiles, hands over the mouth and fast head turns give the sync less to work with.
- Need a voice track first? Make one with text to speech or your cloned voice, then paste that file’s link here.
- Trim the video to the part that changes. You pay per second, so syncing a 10-second fix inside a 5-minute video costs far less as a 10-second clip.
- The audio link has to open without a login and point straight at the mp3 or wav file. A private or share-page link will not fetch.
Frequently asked questions
How is this different from the AI video translator?
The video translator only needs a video. It transcribes the speech, translates it into one of 11 languages, voices it and lip-syncs it for you, on videos up to 10 minutes. This tool is for when you already have the audio, like a re-recorded line, a corrected narration, or a text to speech or cloned-voice track, and only want the lips to match.
Can I upload the audio file directly?
Not in this tool. The audio goes in as a publicly fetchable mp3 or wav URL, for example a file you made with the text to speech tool.
Is there a length limit?
There is no maximum duration. Cost grows with every second of video, though, so trim to the part you need.
Is it free?
No. Each run spends AI credits from your Wujud account, billed per second of video. Credits are bought as a pack and new accounts start with none. The tool needs a paid plan.
Can I use it commercially?
Yes, as long as you have the rights to both the video and the audio you sync onto it.
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