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SBV to TTML converter, without the upload.

Turn SBV captions into TTML. It is converted in your browser, so the file never leaves your device.

Drop SBV files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

Convert to

How to convert SBV to TTML

  1. Add your SBV captions

    Drop SBV files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. TTML is already chosen

    Press Convert. There is nothing else to set. The work happens in this tab.

  3. Download

    Save the TTML, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The SBV to TTML converter is part of this page and runs inside your browser. Your captions are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

SBV to TTML: what to expect

SBV is understood mainly by YouTube and a few caption tools. TTML is accepted by broadcast and streaming platforms. SBV is at home in uploading and downloading YouTube captions; TTML is the usual choice for subtitles delivered to broadcasters and streaming services.

The text is read as UTF-8 or UTF-16, whichever the file is. An older file in another code page is read using the charset it declares, or as Windows-1252 if it declares none, so accented letters in an unlabelled legacy file can come out wrong. A file that is not text, such as the picture-based subtitles of a DVD, is refused instead of being converted to nonsense. Of the styling, only italic, bold, underline and the position on screen (top, middle or bottom, left, centre or right) travel between formats; fonts, colours, outlines and effects do not. Positions are written as TTML regions and italic, bold and underline as styled spans; the result is a plain TTML file with no broadcast-specific profile.

SBV vs TTML

SBV

YouTube SBV subtitles

SBV is the plain caption format YouTube exports and accepts: a time range such as 0:00:01.000,0:00:04.000 followed by the text. It carries no styling and few other programs read it.

Opens in YouTube Studio and some caption tools; few media players

SBV converter
TTML

TTML subtitles

TTML is the W3C's XML subtitle format. Streaming services and broadcasters deliver captions in TTML profiles such as IMSC. It can describe regions, styles and timing precisely, but it is verbose, and many consumer players do not read it. DFXP is an earlier profile of it.

Opens in Broadcast and streaming systems, Apple and Netflix workflows, and some video players

TTML converter
SBV compared with TTML
SBVYouTube SBV subtitlesTTMLTTML subtitles
Stands forYouTube caption fileTimed Text Markup Language
TypeSubtitlesSubtitles
CompressionNoneNone (XML text)
IntroducedThe late 2000s, by Google (YouTube)2010, by the W3C
Opens inYouTube Studio and some caption tools; few media playersBroadcast and streaming systems, Apple and Netflix workflows, and some video players
Best forUploading and downloading YouTube captionsSubtitles delivered to broadcasters and streaming services
File extension.sbv.ttml, .dfxp

Questions

Are my captions uploaded anywhere?

No. The SBV to TTML conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Is anything lost when converting SBV to TTML?

No further quality is lost: TTML stores the decoded audio exactly. The result is identical in content.

Can I convert several SBV files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert SBV to TTML on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the SBV file, press Convert and save the TTML. There is nothing to install.

Is there a file size limit?

Yes, but a subtitle file is small. Files up to 50 MB are accepted, far more than any real subtitle file. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.