Free tool
Japanese to Spanish video translator
This Japanese to Spanish video translator brings a video in Japanese to Spanish-speaking viewers: the Japanese speech is transcribed, translated into Spanish, and shown as Spanish subtitles timed to the Japanese.
- Free
- Spanish SRT and VTT
- Only the sound is read
Drop your Japanese video here, or Choose your Japanese video
MP4, MOV, M4V, MKV, 3GP or WebM video. Up to 30 minutes of each file, 3 free files a day. Translates Japanese speech into Spanish.
Working with Japanese and Spanish videos? NoteOwl transcribes them on your Mac with unlimited transcription and saves SRT subtitles that name each speaker.
How it works
How do you put Spanish subtitles on a Japanese video?
Drop the Japanese video on this page. The speech is transcribed in Japanese, each line is translated into Spanish, and the Spanish is set out as subtitles on the Japanese timing. Download the SRT: you have used it to translate a Japanese video to Spanish, start to finish.
- 1
Choose the Japanese video
A talk, a tutorial, a travel vlog: MP4, MOV, M4V, MKV, 3GP or WebM.
- 2
Japanese becomes Spanish
Transcribed and translated, up to 30 minutes of each video.
- 3
Download the Spanish
SRT or VTT; Original holds the Japanese subtitles.
How is Japanese speech transcribed?
Cleanly, in our language test, which counted errors per character because Japanese is written without spaces between words. The Spanish is translated from that transcript, so the Japanese under Original is the place to check a doubtful line.
Do Spanish subtitles take more room than Japanese ones?
About the same. Ten Japanese test sentences came to 379 characters, their Spanish to 1,011, but a Spanish line holds 42 characters to Japanese’s 16. Spanish is read at 17 characters a second, Japanese at 9.
The Spanish also keeps the Japanese sentences apart when the speaker makes two: “…静寂に包まれました。最初のジェット機が…” became “…la ciudad quedó envuelta en silencio. Fue el momento en que el primer jet…”, which breaks neatly into subtitles.
Do Japanese names come back spelled correctly?
In our test, yes. Names written in katakana came back in their usual Latin spelling: ラオニッチ as “Raonic”, ピケJr. as “Piquet Jr.”, and シックスフラッグスセントルイス as “Six Flags St. Louis”. Unfamiliar names are still worth a glance.
- ラオニッチに敗れています
- Spanish subtitleha sido derrotado por Raonic
- 午前8時46分ちょうど
- Spanish subtitleExactamente a las 8:46 a. m.
- 時速105マイル（165km/h）
- Spanish subtitle105 millas por hora (165 km/h)
| Japanese | Spanish subtitle |
|---|---|
| ラオニッチに敗れています | ha sido derrotado por Raonic |
| 午前8時46分ちょうど | Exactamente a las 8:46 a. m. |
| 時速105マイル（165km/h） | 105 millas por hora (165 km/h) |
How are times and tenses handled?
Times take the Spanish form: 午前8時46分 became “8:46 a. m.”, spaces included. Tenses follow the Japanese: 敗れています came back as “ha sido derrotado”, where a Latin American translator wrote “fue derrotado”. Either is correct; pick what your viewers say.
Recording in Japanese and Spanish?
NoteOwl understands Japanese and Spanish on your Mac: it imports MP4 videos, transcribes them with unlimited transcription and saves SRT subtitles with each speaker’s name. Have Japanese subtitles already? Translate them into Spanish and keep their timing.
FAQ
Questions about Spanish subtitles for Japanese videos
Is the Japanese to Spanish video translator free?
Yes: 3 videos a day, up to 30 minutes each, without an account. The Spanish subtitles, the Japanese ones and the text all come with it.
Can I get the Japanese subtitles too?
Yes. Switch the result to Original and download the Japanese SRT, laid out in short Japanese lines from the same speech.
Does it make a Spanish voice track?
No. The page writes Spanish subtitles; your video’s sound and picture stay as they are.
How do I add the Spanish subtitles on YouTube?
In YouTube Studio, open Subtitles, choose the video, add Spanish and upload the SRT with timing. Spanish-speaking viewers then pick it from the subtitle menu.
Is my Japanese video uploaded?
No. The browser takes the sound out on your device; short pieces of it go to a cloud AI transcription service and the Japanese text to a cloud AI translation service, which both discard it. The picture never leaves your computer.
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
- 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
- Russian to SpanishTranslate a Russian video into Spanish subtitles free in your browser: the speech is transcribed in Russian, translated and timed as SRT or VTT; only the sound is sent, nothing is stored
The same in other tools
Related
- Japanese subtitle generatorMake Japanese subtitles from a video or recording free in your browser, with the language set to Japanese; SRT, VTT or text; nothing is stored
- Japanese speech to textJapanese dictation, meetings and imported recordings transcribed on your Mac, with a real NoteOwl transcript of a sample recording
Japanese and Spanish 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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