SRT to VTT Converter — Free Online

Convert SRT subtitle files to WebVTT (VTT) format instantly. Paste your SRT or upload a file — no account required, nothing uploaded to any server.

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Click to upload .srt file

or paste SRT below

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What is an SRT file?

SRT (SubRip Text) is the most widely used subtitle format in the world. Originally developed for the SubRip software, it stores subtitle cues as numbered blocks, each containing a start/end timestamp pair and one or more lines of text. Timestamps use a comma to separate seconds from milliseconds: 00:01:23,456. SRT files are plain text, making them easy to open in any text editor, and they are natively supported by VLC, most video editing software, and streaming services including Netflix, YouTube, and Amazon Prime.

What is a VTT (WebVTT) file?

WebVTT (Web Video Text Tracks) is the W3C standard subtitle format for the web. It is the format required by the HTML5 <track> element, which allows browsers to display native subtitles on <video> elements without JavaScript. VTT is structurally identical to SRT but uses a dot to separate seconds from milliseconds (00:01:23.456) and begins with a required WEBVTT header line. VTT also supports optional features like CSS styling, positioning cues, and metadata tracks that SRT does not.

When should you convert SRT to VTT?

Convert SRT to VTT when: (1) You are embedding video on a website and need to use the HTML5 <track> element for accessibility compliance. (2) Your video hosting platform — Vimeo, Wistia, Brightcove, or Kaltura — requires VTT format. (3) You are building a web app or CMS that serves subtitles from a CDN. YouTube accepts both formats, but most web players default to VTT. If you are only working in a desktop video editor, keep the SRT file — no conversion is needed.

1
Upload or paste your SRT file
Click the upload zone to select a .srt file, or paste the raw SRT content into the text box below it.
2
Click Convert SRT → VTT
The tool converts every timestamp separator (comma → dot) and prepends the required WEBVTT header. All cue text and timing is preserved exactly.
3
Download or copy the VTT output
Click "Download .vtt file" to save the result, or use the Copy button to paste directly into your CMS, CDN config, or code.

What is the difference between SRT and VTT?▼

SRT uses comma-separated milliseconds (00:00:01,000) and is the standard for video editors and offline tools. VTT uses dot-separated milliseconds (00:00:01.000), adds a WEBVTT header, and is required for HTML5 web players. Functionally they store the same information — timing and text.

Is this conversion lossless?▼

Yes. The tool only changes the timestamp separator (comma → dot) and adds the WEBVTT header line. All subtitle text, line breaks, and timing is preserved exactly.

Which video players require VTT format?▼

HTML5 <video> with <track>, Vimeo, Wistia, Brightcove, JW Player, Kaltura, and most web-based players require VTT. Desktop players (VLC, Plex, Kodi) prefer SRT. YouTube accepts both.

Can I convert VTT back to SRT?▼

Yes — use our free VTT to SRT converter, which does the reverse: strips the WEBVTT header and swaps dots back to commas.

Does VTT support styling that SRT doesn't?▼

Yes. VTT supports CSS class cues (<c.classname>), positioning (line:, position: align:), and ::cue CSS rules for custom styling. SRT supports only basic HTML-like tags (, , ) which most players strip anyway.

Will the converted VTT work on YouTube?▼

Yes. YouTube accepts both SRT and VTT uploads in the subtitles editor. The converted VTT will import correctly with all timing intact.

Does my subtitle file get uploaded to VideoText servers?▼

No. The entire conversion runs in JavaScript in your browser. Your file never leaves your device. This is also why there's no file size limit.

What if my SRT has HTML formatting like or ?▼

HTML tags are preserved in the output VTT. VTT officially supports , , , and <ruby> tags, so formatted text will carry through correctly to players that support it.

SRT to VTT Converter — Free Online

Part of VideoText’s free subtitle tool cluster

Next: fix, translate, burn, or generate from video

Turn any video into a transcript, chapters & summary — automatically

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