Upload videos or subtitle files, automatically translate with deep context comprehension, lock 100% timestamps, and export bilingual captions.
No credit card required • Get 50,000 free credits when you sign up
Upload video or subtitle file
Upload MP4, MOV, WEBM video files or import existing SRT, VTT, ASS subtitle files directly.
Choose languages & AI context
Auto-detect spoken source, select target language from 100+ global languages, and enable deep context comprehension.
Preview & export multi-format
Inspect captions on live video player, customize font/color/backdrop, and download SRT, VTT or burn-in video.
travel-japan.mp4
00:06:24 · MP4

This is one of the most beautiful cities I have ever visited.
This is one of the most beautiful cities I have ever visited.
Hello everyone!
Today I'll take you to explore Tokyo.
This is one of the most beautiful cities I have ever visited.
We will start from the famous Asakusa area.
This place has ancient temples and a very unique atmosphere.












Generic machine translation loses narrative nuance, causes timeline drift, and requires tedious manual editing.
Generic translators treat each subtitle line in isolation, resulting in awkward phrasing, broken idioms, and loss of narrative context.
Copy-pasting text into web translators frequently corrupts timestamp formats (00:01:23,456), desyncing speech from video.
Creating bilingual subtitles manually requires copying and formatting two languages line-by-line, wasting hours of editor time.
A streamlined browser-based workflow without requiring heavy desktop video editing suites.
Upload MP4, MOV, WEBM video files or import existing SRT, VTT, ASS subtitle files directly.
Auto-detect spoken source, select target language from 100+ global languages, and enable deep context comprehension.
Inspect captions on live video player, customize font/color/backdrop, and download SRT, VTT or burn-in video.
Everything you need to localize video content and reach global audiences seamlessly.
Advanced timing engine locks original millisecond start and end timestamps, guaranteeing frame-accurate synchronization.
Automatically generates side-by-side or stacked dual subtitles, perfect for language learners and international audiences.
Customize typography, font sizing, color highlights, and background opacity. Render burned-in subtitles directly into video.
Seamlessly compatible with CapCut, Adobe Premiere, DaVinci Resolve, Final Cut Pro, YouTube, and all major video platforms.
Direct comparison between intelligent subtitle localization and manual workflow tools.
Flexible credits, no surprise fees. Upgrade or cancel anytime.
All Yupvox tools share a unified credit balance. You can freely allocate credits across TTS, Audio, and Video dubbing.
99,000 credits = ~99,000 characters (~16,500 words, ~25 book pages or ~2 hours of narration).
99,000 credits = ~33 minutes of multi-speaker AI audio translation & expressive voice dubbing.
99,000 credits = ~16.5 minutes of AI video dubbing, subtitle masking & 4K MP4 re-rendering.
| Plan | Credits / Cycle | Text to Speech | Audio Dubbing | Video Dubbing |
|---|---|---|---|---|
| Free ($0) | 50,000 | 50,000 characters (~1h) | ~16.6 minutes | ~8.3 minutes |
| Lite ($1.0 / $2) | 99,000 / month | 99,000 characters (~2h) | ~33 minutes | ~16.5 minutes |
| Starter ($4.5 / $9) | 999,000 / month | 1,000,000 characters (~20h) | ~333 minutes (about 5.5h) | ~166.5 minutes (about 2.7h) |
| Growth ($9.5 / $19) ⭐ | 2,499,000 / month | 2,500,000 characters (~50h) | ~833 minutes (about 13.8h) | ~416.5 minutes (about 6.9h) |
| Pro ($14.5 / $29) | 3,999,000 / month | 4,000,000 characters (~80h) | ~1,333 minutes (about 22.2h) | ~666.5 minutes (about 11.1h) |
Yupvox supports uploading video files (MP4, MOV, AVI, MKV, WEBM up to 2GB) as well as existing subtitle files (.srt, .vtt, .ass, .txt). You can also paste video URLs directly.
We support cross-translation between 100+ global languages including English, Vietnamese, Chinese, Japanese, Korean, Spanish, French, German, Indonesian, and many more.
Not at all. Yupvox strictly locks the start and end timestamps of each line while intelligently pacing translated word counts for comfortable reading speeds.
Yes. Simply enable "Merge into video (burn-in)", customize your font styling and position, and download the finished video with crisp HD/4K embedded subtitles.
Credits are calculated transparently based on subtitle line volume or video duration. Every new registered user receives 50,000 free trial credits to explore all features.
Upload your video or subtitle file now and receive 50,000 complimentary credits for all tools.