Can I translate an English video into Japanese?
Yes. Upload the video in the AI Dubbing panel, set English as the spoken language, and choose Japanese as the target. Speechma Pro translates the speech, voices it in Japanese and returns a full video to download as an MP4. Automatic picks a natural native Japanese voice, or you can choose one yourself.
Japan is one of the world’s biggest markets for games, anime, gadgets and travel content, and many viewers there prefer to watch in Japanese. A dubbed version helps an indie game studio in Seattle pitch a trailer, a Los Angeles streetwear brand reach Tokyo shoppers, or a travel creator share a Hawaii guide with Japanese tourists planning a trip.
How do I dub a video into Japanese?
- Prepare the videoExport MP4, MOV or WEBM up to 60 MB. Short trailers and demos fit easily and dub fastest.
- Upload the videoAdd the file in the AI Dubbing panel above, or paste a direct video link. Your video is never stored on Speechma Pro’s servers.
- Choose the languagesPick the language spoken in the original, then Japanese as the target.
- Select a voiceLeave it on Automatic, or open More options to pick a Japanese voice that matches the mood and set the speech speed (0.8x to 1.25x).
- Generate and downloadStart, keep the tab open while it works, and download the dubbed video after you watch it.
What kinds of videos are popular to dub into Japanese?
| Video | Why it works in Japan | Tip before you dub |
|---|---|---|
| Indie game trailer | Strong console and PC gaming culture | Keep the game title on screen in both English and Japanese |
| Gadget or app demo | Japanese buyers value detailed product explanations | Slow down your English narration so each step is clear |
| Travel guide (Hawaii, Guam, US national parks) | Popular destinations for Japanese travelers | Show addresses and prices as on-screen text |
| Fashion or beauty brand video | Large e-commerce market | Add Japanese product names in captions |
| University or study-abroad promo | Students research US programs | Name campuses and cities clearly in the original |
| Anime or fan reaction | Engages the original fan base | Only dub content you created or have rights to |
Upload requirements: MP4, MOV or WEBM up to 60 MB, or a direct link ending in .mp4, .webm or .mov.
How do I make a Japanese dub feel polished?
Japanese audiences often expect a careful, polite tone in brand and product videos. You will get a better result if the English source is calm and clearly spoken. Rushed, slang-heavy narration (“this thing is lowkey insane”) is harder to translate well than plain statements (“this camera is small and very fast”).
- Pause between ideas. Short breaks in the original give the Japanese voice room to finish each sentence.
- Keep music low under speech. Clean dialogue is the most important input for a clean dub.
- Localize the visuals. Add Japanese text overlays for prices, dates and calls to action.
- Get a native review. For anything you will advertise, ask a fluent speaker to check honorifics and product names.
To voice a custom Japanese script instead, use Japanese text to speech, which gives you full control over the wording.
What else can I do with the Japanese version?
- Add subtitles too. Some viewers like both. Export the audio of the dubbed video and make a Japanese SRT with the subtitle generator.
- Make a short teaser. Cut a 15-second clip for YouTube Shorts or X.
- Dub into Chinese next. If you are targeting Asia, Chinese is also an available dub language.
- Add game voices. For in-game lines and characters, see video game voices and anime voice generator.
A quick test before a big launch
Before you dub a whole trailer series, run one 30-second clip first. Share it with two or three Japanese-speaking players or customers and ask one simple question: “Does this sound natural?” Their answer tells you if you should adjust the voice or the wording of your English source. Then dub the rest. This small step saves time and keeps your brand sounding consistent across every Japanese video you post.
Frequently asked questions
Is it to translate a video to Japanese?
How big can my video be?
Can I translate a Japanese video into English?
Can I dub anime clips I found online?
Does it change the on-screen text?
What other languages can I dub into?
Make better voiceovers, faster
- New voices and features the day they launch
- Script templates and tricks that make AI voices sound human
- Creator stories, community picks and early access