SRT を TTML に変換

Free online SRT to TTML converter. Fast, secure, no signup required.

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Accepted: SRT files · Max 100 MB per file

srt ttml

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Need to convert SRT to TTML? MegaConvert makes it easy. Upload your SubRip Text (SRT) file and get a Timed Text Markup Language (TTML) file in seconds — no software to install, no signup required. Whether you need this conversion for video editing / web streaming, our online converter handles it instantly. Free for files up to 25MB, with support for larger files up to 2GB.

How to Convert SRT to TTML Online

1
Upload your SRT file
Click the upload area or drag and drop your SRT file. Files up to 25MB are free. Larger files are supported with pay-per-use.
2
Choose TTML as output format
TTML is automatically selected on this page. You can adjust conversion settings if needed.
3
Click Convert
Hit the Convert button to start processing. Your file will be converted using our high-performance servers.
4
Download your TTML file
Once conversion is complete, click Download to save your new TTML file. Free files are available for 1 hour.

Why Convert SRT to TTML?

**Reduce file size** — Converting between formats can significantly reduce file size, making files easier to share via email or cloud storage.
**Software requirements** — Your software or platform may require TTML format specifically. Converting ensures full compatibility.

SRT vs TTML — Format Comparison

Feature	SRT	TTML
Full Name	SubRip Text	Timed Text Markup Language
Developer	SubRip (community standard)	World Wide Web Consortium (W3C)
First Released	2000	2010
Category	Subtitle	Subtitle
Extension	.srt	.ttml
MIME Type	text/srt	application/ttml+xml

Styling and positioning may be lost when converting to simpler formats like SRT.

About SRT Format

Most popular text-based subtitle format with simple timing and text markup.

Full name: SubRip Text

Developer: SubRip (community standard) (2000)

About TTML Format

XML-based subtitle standard used in broadcast, streaming, and MPEG-DASH.

Full name: Timed Text Markup Language

Developer: World Wide Web Consortium (W3C) (2010)

よくある質問

Upload your SRT file to MegaConvert.io, select TTML as the output format, and click Convert. Your converted file will be ready to download in seconds. No software installation required.

Yes! Files up to 25MB can be converted for free, up to 3 times per day. For larger files, pay-per-use pricing starts at just $2 for files up to 100MB.

Absolutely. All uploaded files are encrypted in transit (HTTPS), scanned for viruses, and automatically deleted after conversion. We never share or access your files.

Free users can convert files up to 25MB. Pay-per-use supports files up to 2GB. Subscribers get up to 2GB with priority processing.

Most popular text-based subtitle format with simple timing and text markup. Developer: SubRip (community standard) (2000).

XML-based subtitle standard used in broadcast, streaming, and MPEG-DASH. Developer: World Wide Web Consortium (W3C) (2010).