Skip to content
DubSync
Upload your video

Video to Japanese · AI dubbing

Translate your video to Japanese. Keep every voice in it.

Upload the video you already made. DubSync translates the speech into Japanese, gives each speaker a voice created from their own, keeps your music and background sound and returns a dubbed MP4.

Dub my video into Japanese

Pro: 7 days free for eligible new subscribers, with 60 minutes. Card required. Then $29.90/month; cancel before the trial ends to pay nothing. Trial minutes expire after 7 days.

Upload an MP4, MOV or M4V. You see the minutes and the cost before anything starts.

JapaneseDubbed

What is said: I recorded this video once in English. Pick a language and hear the same video in a voice like mine.

What is said: Grabé este video una vez en inglés. Elige un idioma y escucha el mismo video en una voz como la mía.

What is said: Gravei este vídeo uma vez em inglês. Escolha um idioma e ouça o mesmo vídeo em uma voz como a minha.

Demo clip: an AI-generated scene with a fictional character. Dubbed with VDub v2, the model DubSync runs; lip-synced tracks use VSync v2.

Lip-sync shown in these examples is an optional paid add-on, separate from the dubbing trial.

Hear it

The same clips, dubbed into Japanese.

These clips were made in English and dubbed into Japanese with the model the app runs. Play one, then switch between the original and Japanese.

An animated character

  • The character keeps its bright, young voice in Japanese.
  • Music and forest sounds stay under the new speech.
  • Stylized mouths rarely need lip-sync, so a plain dub is usually enough for animation.
JapaneseDubbed

What is said: Hi, I'm Pip the Fox. My stories began in one language. Now, children can hear them in their own.

Demo clip: an AI-generated scene with a fictional character. Dubbed with VDub v2, the model DubSync runs; lip-synced tracks use VSync v2.

Narration over footage

A narrator never shows their lips, so nothing has to match on screen. This is the simplest kind of video to dub into Japanese: the voice changes and the picture stays exactly as you cut it.

JapaneseDubbed

What is said: For thousands of years, this coast has looked the same. Only the language of the story changes.

Demo clip: an AI-generated scene with a fictional character. Dubbed with VDub v2, the model DubSync runs; lip-synced tracks use VSync v2.

Who you reach

Where a Japanese version can be watched.

Japanese is the language of Japan, and nearly all of its speakers live there. For a creator, that makes a Japanese version a version for a single country, and the direct way to be understood by viewers there who do not follow English.

CPM is what advertisers pay, not what a creator earns. Pay depends on where viewers watch, the niche and YouTube Partner Program eligibility. No result is guaranteed.

What advertisers paid there, next to the United States:

What advertisers paid per 1,000 YouTube ad impressionsMedian CPM in US dollars, long videos uploaded in 2024.
  1. United States$11.95
  2. Japan$3.41

Source: IsThisChannelMonetized via Digital Information World, Aug 2025.1

Before you publish

What to check in a Japanese dub.

A dub can't be corrected word by word, so listen to the result before you post it, ideally with a native speaker.

  • Polite or casual speech

    Japanese verbs carry the level of politeness: the plain forms used with friends, the polite desu and masu forms, and the respectful and humble forms of keigo used with customers. Listen for whether the level fits your video and stays steady.

  • Pronouns left unsaid

    Natural Japanese usually leaves out "I" and "you", and calling a viewer "anata" can sound distant. Ask a native listener whether the dub sounds spoken or translated.

  • English words in katakana

    Borrowed words and foreign names are reshaped to fit Japanese syllables, so they sound different from the English. Listen to your brand and product names and check that viewers could still recognize them.

Upload. Translate. Download.

From your original to a Japanese MP4 in four steps.

  1. Upload your original.

    MP4, MOV or M4V, up to 1 GB and 150 minutes. We detect the spoken language for you.

  2. Review your target language: Japanese.

    We calculate the input minutes your video needs before you pay anything.

  3. Review and confirm.

    See the minutes and the cost, confirm your rights and every speaker's voice consent, then start the dub.

  4. Download your MP4.

    A voice for each speaker, your background audio kept and no visible watermark. Add lip-sync if you need it, priced per minute.

More languages

Dub the same video into another language.

Each target language is its own project and uses the video's minutes again.

All languages

Before you upload

Translate only what is yours to translate.

Questions

Questions before you start

Which languages can I translate into Japanese from?

You don't choose a source language: the spoken language is detected automatically. You choose Japanese as the language to dub into.

Will the Japanese voice sound like the original speaker?

Each voice is created from the original speaker, so it should sound similar, not identical. Clear speech with little background noise gives the best result.

Which variety of Japanese does the dub use?

There is one Japanese option, with no regional variants to choose from. If a regional audience matters to you, ask a native speaker from that region to listen before you publish.

Can I get Japanese subtitles instead of a dub?

No. DubSync makes a dubbed MP4, not a subtitle file.

How long can the video be?

Up to 150 minutes and 1 GB per file, as an MP4, MOV or M4V.

How is a Japanese dub priced?

By the input minute: the length of your original video, for each target language. You upload first and see the minutes and the cost before anything starts.

Plans from $4.90/month. You see the minutes and the cost before anything starts. See pricing

Sources

  1. Digital Information World (data compiled by IsThisChannelMonetized). YouTube CPM Rates in 2025: How Location Shapes Earnings. Published Aug 11, 2025; accessed Oct 3, 2026.

Keep exploring

Start with one file

Your video, now in Japanese.

Upload it, see the minutes, then decide.

Dub my video into Japanese

Only upload videos you have the rights to, with every speaker's permission.