AI Video Dubbing in 175+ Languages
Don't just dub your content—truly localize it. Our AI Video Translator clones your natural speaking voice and perfectly resyncs your lip movements to the new language. Instantly adapt training materials, marketing ads, and YouTube content for 175+ languages without re-filming.
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See it in another language in just minutes.
Why you should use HeyGen’s AI dubbing tool
Fast, simple, and cost-effective
Need AI dubbing to create voiceovers and translate videos? Traditional dubbing requires studios, actors, and editors, making it costly and slow. With HeyGen, upload your video, choose from 175+ languages and dialects, and let AI generate professional dubs in minutes.
Preserve your unique voice
Generic text-to-speech flattens personality. HeyGen’s AI voice cloning captures your tone, style, and nuances, delivering audio that feels authentically you. Whether for marketing, training, or storytelling, your brand’s voice stays consistent across every language.
Seamless lip-sync accuracy
Nothing breaks immersion like off-beat dubbing. HeyGen’s AI aligns voiceovers precisely to speakers’ lip movements with advanced timing models. The result is smooth, natural synchronization that keeps viewers engaged.
Scale your global reach
Voice dubbing expands discoverability, watch time, and engagement. HeyGen automates high-volume localization so enterprises and creators can quickly translate entire libraries, attract international audiences, and accelerate growth.
Video and Audio Dubbing
HeyGen offers two dubbing engines: Speed and Precision. If you want context-aware translation with highly natural lip-sync and better gender detection, use the Precision model. If you want fast translations at scale, use the Speed engine.
You can also use audio dubbing to translate only the audio of a video—quickly and without applying lip-sync—for example, if there's no face in your video.
Have questions? We have answers
What is AI dubbing?
AI dubbing replaces a video's original dialogue with a new language track that matches the speaker's timing and tone. Unlike a voiceover, which layers narration on top, dubbing replaces the speech itself and can resync lip movement to the new audio.
How many languages does HeyGen support?
175+ languages and dialects. The original language is detected automatically, and you can translate into up to five languages in a single pass.
Does dubbing work with videos that have more than one speaker?
Yes. Set the number of speakers in the advanced settings so each voice is handled separately. Results are strongest with one or two speakers who do not talk over each other. Getting the speaker count wrong is the most common cause of voices bleeding between speakers.
Will the dubbed video be the same length as the original?
Translations change length, so Dynamic Duration adjusts pacing to keep the audio aligned with the picture. It is on by default and we recommend leaving it on.
What is the difference between lip sync translation and audio dubbing?
Lip sync translation resyncs the speaker's mouth to the new language and suits talking-head video. Audio dubbing translates the voice only, without changing lip movement, and suits videos where the speaker is offscreen or small. Audio dubbing also costs fewer credits per minute.
Can I keep my own voice in the dubbed video?
Yes. Voice cloning recreates your tone and delivery in the target language, so the dubbed version still sounds like you rather than a generic text-to-speech voice.
Does dubbing generate subtitles too?
Yes. Subtitles are generated in the target language and can be downloaded, and you can export the ASS file. Translated videos can also be shared through an embeddable multilingual player where viewers switch language themselves.
How long can my video be?
Up to 30 minutes per video on Creator and Pro plans, 60 minutes on Business, and no duration cap on Enterprise. Split longer content into parts under the cap. Upload a file or paste a YouTube or Google Drive link.
Is AI dubbing free to try?
Yes. The free plan covers 3 videos per month, each up to 3 minutes, with AI subtitles, AI voiceover and lip sync included. No credit card is required.
How do I get the best dubbing quality?
Use close-up shots, keep camera cuts to a minimum, reduce background noise, and make sure only one person speaks at a time. Set the speaker count before translating, and review the translated subtitles before the final render.
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