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Japanese EnglishVoice clone

Translate your Japanese video to English in your own voice

Upload Japanese footage and get it back in English, still in the original speaker's voice. Fix the lines machine translation guesses at, then regenerate.

Voice cloned from your upload

No credit card. First video free. Keeps your voice.

120k+ videos dubbed with WavBoost

Listen

One upload, two voices. Both are the same speaker.

Same speaker
JapaneseOriginal0:00 / 0:02

โ€œใ“ใฎไป•็ต„ใฟใ‚’ใŠ่ฆ‹ใ›ใ—ใพใ™ใ€‚โ€

EnglishDubbed0:00 / 0:02

โ€œLet me show you how this works.โ€

Sample output. Your clone is built from your own recording. Pacing kept 1:1
Language details

What changes when you dub Japanese into English

Translation is the easy half. These are the parts that usually give a dub away.

Japanese leaves out what English has to say

Japanese routinely drops the subject when it's clear from context. English can't: every sentence needs an I, you, we or they. So translating Japanese to English means guessing who is being talked about, sentence after sentence, and a wrong guess reverses the meaning of a line without producing anything that sounds broken. This is the single most common failure in Japanese to English dubbing, and it's why the translated text stays editable before any voice is generated.

Review who's speaking

Keigo has nowhere to land

The gap between plain form and full keigo carries a lot of information in Japanese: seniority, distance, how formal the setting is. English has almost nothing to map it onto, so a boardroom address and a chat between friends can arrive as the same flat register. WavBoost pushes the difference into word choice and phrasing rather than dropping it, and where a line needs to sound more or less formal than it came out, you rewrite it and regenerate.

Formality kept in the phrasing

Where the words divide

Japanese is written without spaces, so before anything can be translated the transcript has to be split into words and the segments into sentences. Get that wrong and everything downstream inherits the error, which is how you end up with dubs that are fluent English and wrong. Segment boundaries and timestamps are both editable, so a mis-split line can be fixed at the source instead of patched in the translation.

Fix splits at the source

Audience size

English reaches ~1.5 billion people

speakers worldwide, the largest addressable audience of any language online and the default for international distribution.

Source: Ethnologue

Largest markets

  • United StatesLargest English-speaking market~300MSpeakers
  • IndiaMostly second-language speakers~130MSpeakers
  • United KingdomLargest English-speaking market in Europe~65MSpeakers
  • CanadaAlongside French~30MSpeakers
  • AustraliaLargest market in Oceania~25MSpeakers
How it works

Three steps

Go from a Japanese video to a English track you can publish.

  1. 01

    Upload your Japanese video

    MP4, MOV, MP3 or WAV. The voice is cloned from the audio already in it.

  2. 02

    Check the English transcript

    Edit the wording and the timing of any segment, then regenerate until it lands right.

  3. 03

    Download

    The dubbed video, or the English audio on its own to add as a second track.

FAQ

Questions about English

What creators and localization teams ask before their first English dub.

Yes. The voice is cloned from the Japanese audio, so the English track keeps the original speaker's timbre and delivery. It's their voice speaking English, not a stock narrator reading a translation.

Japanese drops subjects that English requires, so the translation infers them from surrounding context. This is the part worth reviewing: the translated text is fully editable before the voice is generated, so a wrong I or you can be corrected and the job regenerated.

Politeness level is carried into English word choice and phrasing rather than discarded, though English has no direct equivalent to keigo. Where a line reads as too formal or too casual, edit it and regenerate.

Yes. Segment timestamps are editable alongside the text. English phrasing rarely lands on the same beats as the Japanese original, so you can shift a line to hit a cut or give a longer sentence room, then regenerate.

Multi-speaker recordings are separated by speaker, which matters more in Japanese than in most languages because dropped subjects make it harder to tell from the text alone who is talking.

Yes. Download the dubbed audio on its own and add it through YouTube's multi-language audio feature, which serves English-speaking viewers your English track automatically while keeping the original video.

Yes. Audio and video generated through WavBoost are cleared for commercial use, including monetized YouTube and social channels.

Start dubbing

Ready to reach English speakers?

No credit card required. First video free.