One source SRT became six market-ready files with timing untouched. Our agency quoted two weeks for the same job.
Portuguese → Japanese · timing preserved: Translate Subtitles from Portuguese to Japanese
Bring an SRT/VTT file — or generate captions from a video — and get perfectly timed Japanese subtitles in minutes.
SRT & VTT in and out · videos up to 8 GB · no credit card needed
Timing stays. Japanese comes in.
launch-video.srtPTJA
100:00:01,200 --> 00:00:03,100
Reformamos o estúdio no inverno.冬にスタジオを作り直しました。
200:00:03,300 --> 00:00:06,000
Desde então, cada episódio soa mais quente.それ以来、どのエピソードも温かく聞こえます。
300:00:06,200 --> 00:00:07,900
As pessoas percebem na hora.聴く人はすぐに気づきます。
Timecodes untouched
Click or drag & drop to upload your audio or video
MP3, MP4, M4A, MOV, AAC, WAV, OGG, OPUS, MPEG, WMA, WMV
No credit card required · Files encrypted · Never used for AI training
How to Translate Portuguese Subtitles to Japanese
Three steps — timing stays untouched.
Translate to Japanese30 free minutes · No credit card
Bring existing Portuguese subtitles, or upload a video and generate captions first.
Every line is translated with context, inheriting the exact original timing.
Adjust any Japanese line if needed, then export a ready-to-use SRT or VTT file.
Portuguese → Japanese, Done Right
Accurate translation that never breaks your timing.
Perfect timing preserved
Japanese captions inherit the exact start and end times of your Portuguese source — zero re-syncing.
Natural Japanese
Context-aware AI keeps idioms, tone and names natural — subtitles read like they were written in Japanese.
Edit before export
Review any line with the Portuguese original side by side, and refine before you ship.
Works both ways
Need Japanese → Portuguese? The same tool translates in either direction.
Why Timing Makes or Breaks Translated Subtitles
Our AI translates meaning, not just words — so Japanese subtitles read naturally to native speakers, while every line stays locked to the original timing.
No re-syncing. Japanese captions inherit the exact start and end times of your Portuguese source, so they appear precisely when they should.
Loved by Creators, Teams and Researchers
Rated Excellent 4.8/5 based on 580+ reviews
Uploaded a two-hour recording during lunch — the transcript was waiting before I finished my coffee. The accuracy genuinely surprised me.
Our legal team approved it because processing stays on EU infrastructure. That alone ruled out most of the competition.
Seeing source and translation together makes QA fast. We ship subtitles the same day we cut the video.
No card, no tricks — I tested real files before paying and upgraded a week later because the workflow stuck.
Had trouble with a huge file — support walked me through batch upload the same morning. Rare these days.
Upload your Portuguese SRT or VTT file, or the video itself, and choose Japanese as the target language. BlaBlaScribe translates every line with AI and keeps the original timestamps, so the Japanese subtitles stay in sync with the speech. Fix the wording in the editor, then download SRT or VTT or export an MP4 with the subtitles burned in. Translation is available on paid plans from $14 a month.
SRT and VTT for input and output. You can also start from a video — generate Portuguese captions first, then translate them to Japanese in the same project.
Yes, exactly. Every Japanese line inherits the original start and end times, so captions stay perfectly synced without any manual re-timing.
Lines are translated with sentence-level context — idioms, tone and names come through naturally rather than word-for-word. You can review and edit anything before export.
Yes — the tool works in both directions, and into 50+ other languages too.
You can start free with no credit card: 30 minutes of transcription that never expire. Subtitle translation is part of the paid plans, starting with Creator at $14/month.