Free tool
Spanish to Japanese video translator
This Spanish to Japanese video translator gives Japanese viewers subtitles for a video in Spanish: the speech is transcribed, translated into polite Japanese and broken into short Japanese subtitles that appear with the Spanish they translate.
- Free
- Japanese SRT and VTT
- Nothing is stored
Drop your Spanish video here, or Choose your Spanish video
MP4, MOV, M4V, MKV, 3GP or WebM video. Up to 30 minutes of each file, 3 free files a day. Translates Spanish speech into Japanese.
Subtitling Spanish videos for Japanese viewers? NoteOwl transcribes your videos on your Mac with unlimited transcription and exports SRT with speaker names.
How it works
How do you add Japanese subtitles to a Spanish video?
To translate a Spanish video to Japanese, drop it on this page. The Spanish speech is transcribed, each line is put into Japanese, and the Japanese is cut into short subtitles that follow its own word order on the Spanish timing. Download the Japanese SRT when it is ready.
- 1
Drop in the Spanish video
MP4, MOV, M4V, MKV, 3GP or WebM. Only the sound is read.
- 2
Japanese is written
Transcribed in Spanish, translated into Japanese, up to 30 minutes of each video.
- 3
Save the Japanese subtitles
SRT or VTT. The Spanish subtitles are under Original.
How do Japanese subtitles fit on screen?
In short lines: up to 16 characters each, 2 lines a subtitle, read at 9 characters a second. Japanese has no spaces, so lines break between words found by the browser, preferably after a particle: “その攻撃は、インドとパキスタンの / 関係に激しい圧力をかけました。”.
In characters the Japanese was far shorter (420 against 1,062 in ten test sentences), but its lines hold 16 characters rather than 42, so on screen it needed about the same room as the Spanish.
What happens to Spanish word order in Japanese?
It turns around. “El autobús iba al Six Flags…, para que la banda tocara…” came back with the purpose first and the verb last: “…バンドが演奏するために、…セントルイスへと向かっていました。” The Japanese subtitles follow Japanese order, not the Spanish.
Each translated line keeps the time of the Spanish line it came from, so within that stretch a Japanese viewer may read the end of the Spanish thought first. Over a whole sentence, the subtitles and the speaker stay together.
How are names and numbers written?
Names in katakana, numbers in Japanese style. Raonic became ラオニック, Piquet Jr. ピケJr. and Fred フレッド; “8:46 a. m.” became 午前8時46分 and the speed 時速105マイル（165 km/h）. A Japanese writer spelled Raonic ラオニッチ, so check names your viewers know.
- por Raonic
- Japanese subtitleラオニックに敗れました
- a las 8:46 a. m.
- Japanese subtitle午前8時46分ちょうど
- 105 millas por hora (165 km/h)
- Japanese subtitle時速105マイル（165 km/h）
| Spanish | Japanese subtitle |
|---|---|
| por Raonic | ラオニックに敗れました |
| a las 8:46 a. m. | 午前8時46分ちょうど |
| 105 millas por hora (165 km/h) | 時速105マイル（165 km/h） |
Is the Japanese polite or casual?
Polite. Every line of our test ended in the です/ます form, such as 敗れました and 向かっていました, which suits videos that speak to viewers. A casual vlog or a documentary narration may want plain endings instead; change them in the SRT.
Publishing Spanish videos for Japanese viewers?
NoteOwl understands Spanish and Japanese on your Mac: it imports MP4 videos, transcribes them with unlimited transcription and saves SRT subtitles with every speaker’s name. Have Spanish subtitles already? The subtitle translator keeps their timing.
FAQ
Questions about Japanese subtitles for Spanish videos
Is the Spanish to Japanese video translator free?
Yes. 3 videos a day, each up to 30 minutes, with no account. Japanese SRT and VTT, the Spanish subtitles and the text are all included.
Can the same video get subtitles in another language?
Yes. The page listens for Spanish, but the Translate into menu lists the other languages, such as English, Korean or Chinese. Pick one before you drop the video in.
Does it dub the video into Japanese?
No. You get Japanese subtitles, not a Japanese voice, and the video file itself is never changed.
Can I keep Spanish subtitles too?
Yes. Switch the result to Original and download the Spanish SRT, made from the same speech. On YouTube, add both languages and viewers choose.
Is my video uploaded?
No. Your browser takes the sound out on your device and sends short pieces to a cloud AI transcription service, then the Spanish text to a cloud AI translation service; each discards it. The picture is never sent.
Keep exploring
More video translator tools
- Video translatorA free video translator: drop in a video and download subtitles in another language, timed to the speech, as SRT or VTT; only the sound is sent, nothing is stored
- Japanese to SpanishTranslate a Japanese video into Spanish subtitles free in your browser: the speech is transcribed in Japanese, translated and timed as SRT or VTT; only the sound is sent, nothing is stored
- Spanish to KoreanTranslate a Spanish video into Korean subtitles free in your browser: the speech is transcribed in Spanish, translated and timed as SRT or VTT; only the sound is sent, nothing is stored
- Korean to SpanishTranslate a Korean video into Spanish subtitles free in your browser: the speech is transcribed in Korean, translated and timed as SRT or VTT; only the sound is sent, nothing is stored
- Spanish to RussianTranslate a Spanish video into Russian subtitles free in your browser: the speech is transcribed in Spanish, translated and timed as SRT or VTT; only the sound is sent, nothing is stored
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Related
- Spanish subtitle generatorMake Spanish subtitles from a video or recording free in your browser, with the language set to Spanish; SRT, VTT or text; nothing is stored
- Spanish speech to textSpanish dictation, meetings and imported recordings transcribed on your Mac, with a real NoteOwl transcript of a sample recording
Spanish and Japanese videos, transcribed on your Mac
Free to download. Runs entirely on your Mac.
macOS 26 or later · Apple Silicon (M1 or newer) · 16 GB memory minimum, 24 GB recommended
About NoteOwl
NoteOwl is private AI meeting notes and memory for the Mac. It captures meetings without a bot joining the call, labels every speaker, writes summaries and action items, and builds a memory of every conversation that you can chat with — fully offline, because the speech recognition and the AI run on the Mac itself. Dictation into any app is free; Pro is a one-time purchase.
NoteOwl pricing: what’s free and what Pro adds
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