Translate VTT subtitles, connect to the web, and reach a global audience.
Professional translation of WebVTT subtitles, purpose-built for HTML5 video. Perfectly preserves timelines and metadata. Ideal for localizing online courses and streaming video subtitles.
Superior to traditional VTT translation
"WebVTT is the standard subtitle format for HTML5 video. O.Translator offers seamless support for .vtt file translation. We meticulously preserve the 'WEBVTT' header declaration, timeline, and positioning parameters to deliver a plug-and-play, multilingual web subtitle solution."
Not just translating text,
but restoring the soul of your documents
WebVTT Standard Support
Strictly adheres to W3C standards. Retains the WEBVTT header declaration to guarantee accurate parsing of translated files by browsers.
Accurate Timeline Preservation
Millisecond-level timecode integrity. Ensures subtitles are perfectly synchronized with the HTML5 player timeline.
Positioning Parameter Protection
Intelligently detects VTT positioning parameters (such as line:80%, align:center), translating only text without disrupting subtitle layout.
Style Tag Support
Supports basic style tags within VTT (such as <b>, <i>, <u>). These emphasis formats are preserved after translation, ensuring highlighted content remains prominent.
Annotations and Metadata
Detects NOTE annotation blocks. You can choose to retain or translate annotation content, streamlining maintenance for developers.
Batch Processing
Enables simultaneous uploading of multiple VTT files, ideal for efficiently processing entire video courses or lecture series.
Why does format matter?
- Precise formatting is the hallmark of professionalism.
- Reduce secondary formatting time.
- Ensure accurate and precise information delivery.
Core translation scenarios
Reliably meeting every translation scenario
Online Education Platforms
Create multilingual subtitles for course videos on platforms like Coursera and Udemy, serving students worldwide.
Corporate Video Websites
Localize subtitles for corporate promotional videos. Ensure flawless display across browsers such as Chrome and Safari, enhancing your brand image.
Streaming Media Service
Rapidly translate VTT subtitles for HLS or DASH streams to ensure OTT platform compliance.
Differentiated advantages
Why do professional teams choose us?
Web Development Friendly
Generated VTT files are standards-compliant and can be directly uploaded to your server for seamless use with <track> tags—eliminating compatibility concerns.
Contextual Understanding
AI understands video script context, delivering faster, consistently high-quality translations compared to traditional subtitle teams.
Flexible delivery
Download either a translation-only or bilingual VTT version to meet diverse player display needs.
Translation FAQs
Easy Translation in Just 3 Steps
1. Upload Your File
Click Translation page , Access the operational interface and complete the login process if required.
Supports over 30 common document formats including PDF, Word, and Excel - simply drag and drop or select your files.
2. Select Translation Language
Simply configure your source language and desired target language—we support translation between over 80 languages.
3. Start Translation and Await Results
You don't need to remain on the page while waiting. Once translation is completed, we will immediately notify you via email to review the results.
Complimentary Trial Translation – Pay Only When Satisfied
We support free translation of selected sections. Continue once you're satisfied with the results.
Start Translation