SBV to TTML Subtitle Converter
Fast. Private. Perfect.
100% local processing in your browser. No upload. No waiting.
Drag & drop your SBV file here
or click to browse
Supports .sbv files up to 50 MB
More Subtitle Tools
How It Works
Upload SBV File
Drag & drop or select your .sbv file
Convert Instantly
We process it locally in your browser
Download TTML
Get your .ttml file immediately
More Conversions You Might Need
Why Choose AllSubConverter?
Your Privacy Matters
Everything runs in your browser. Your files are never uploaded.
Lightning Fast
Optimized processing engine converts files in seconds.
Free & Local
Each file can be up to 50 MB. Batches can contain up to 200 files or 1 GB total.
Works Everywhere
Works on Windows, Mac, Linux, iOS, Android - any modern browser.
Free Online SBV to TTML Converter
Our SBV to TTML converter reads SubViewer input and produces Timed Text Markup Language output entirely in your browser. Source SBV timing (H:MM:SS.mmm comma-paired start,end) is converted to TTML timing (seconds (1.500s) or clock values). Styling and markup that the target format cannot represent are normalized or stripped, leaving valid, ready-to-use output. The conversion runs client-side, so your subtitle files are never uploaded to a server.
Input Format
SBVSBV (SubViewer) is a simple subtitle format popularized for YouTube captions. Each block has a single timestamp line with comma-separated start and end times in H:MM:SS.mmm format, followed by subtitle text. SBV uses [br] for line breaks and the bracket tags for styling, and has no sequence numbers or file header.
Output Format
TTMLTTML (Timed Text Markup Language) is an XML-based subtitle format standardized by the W3C and used by streaming and broadcast workflows. TTML stores captions in <p> elements with begin/end timing expressed as seconds (1.500s) or clock values, supports rich styling and regions, and is the basis of the IMSC and ITT profiles.
Features
Why Convert?
Format Differences
Common Use Cases
Streaming Delivery
Create TTML subtitles as a starting point for Netflix, Apple TV, and broadcast delivery workflows that require profile-specific validation.
Professional Interchange
Use TTML as the rich, validatable interchange format for professional timed-text pipelines.
IMSC / ITT Profiles
Generate TTML that can be profiled and validated for IMSC or iTunes Timed Text delivery.
Related Formats
SRT (SubRip)
The universal plain-text alternative: convert to SRT for maximum device compatibility.
VTT (WebVTT)
The web alternative: convert to VTT if your target is HTML5 video or YouTube.
SCC (Scenarist Closed Captioning)
The North American broadcast alternative: convert to SCC for CEA-608 caption delivery.
Frequently Asked Questions
It reads a SubViewer file, parses each cue's timing and text, normalizes the structure for Timed Text Markup Language, and writes a valid .ttml file. Source SBV timing (H:MM:SS.mmm comma-paired start,end) is converted to TTML timing (seconds (1.500s) or clock values).
Absolutely. Every conversion runs client-side in your browser. No subtitle data, file contents, or metadata is ever transmitted to a server.
SBV is plain text, so the TTML output uses default styling since there is no source styling to carry over. Text and timing are fully preserved.
Yes, completely free with no sign-up, no watermarks, and files up to 50 MB each. All processing happens in your browser, so your files are never uploaded to a server.
Source SBV timing (H:MM:SS.mmm comma-paired start,end) is converted to TTML timing (seconds (1.500s) or clock values).
Yes. The converter is fully responsive and works in any modern mobile browser on iOS and Android.