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SRT to VTT Converter

Convert SRT subtitles to WebVTT — captions for HTML5 web video.

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Updated Sep 2026
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How to use SRT to VTT Converter

  1. Paste or upload your SRT file.
  2. Convert to VTT — WEBVTT header added, timestamps adjusted automatically.
  3. Download the VTT.
  4. Add it to your HTML5 video with a <track> element for browser captions.

What is SRT to VTT Converter?

An SRT to VTT converter changes subtitle files from SubRip format (.srt) to WebVTT format (.vtt) — the format HTML5 video requires. If you have SRT subtitles (the most common format) but need to add captions to a web video using the HTML5 <track> element, VTT is what browsers expect.

The web specifically uses VTT: the HTML5 video caption system reads WebVTT files, not SRT. So the moment you're putting captioned video on a website, converting your SRT to VTT is the step that makes browser captions work.

About the SRT to VTT Converter

Paste or upload your SRT subtitles and get them converted to VTT format to download.

Why the conversion: HTML5 web video — the primary reason: the <track> element that adds captions to web video requires VTT (browsers don't read SRT for this); web players — many JavaScript video players expect VTT; and web platforms — some web-based services want VTT specifically. If you're captioning video for a website, VTT is the format.

What the conversion does: it's straightforward since the formats are similar — the converter adds the required "WEBVTT" header line, changes timestamp separators from commas (SRT: 00:01:30,500) to periods (VTT: 00:01:30.500), and adjusts the structure. The caption text and timing transfer directly. Once you have the VTT file, add it to your HTML5 video with <track kind="captions" src="subtitles.vtt" srclang="en" label="English"> inside the <video> element, and browsers display the captions. Our VTT to SRT converter does the reverse (when you need the universal SRT format from web VTT). For creating captions from scratch, you'd transcribe the video; these converters are for changing format once you have subtitles.

Frequently Asked Questions

The HTML5 <track> element that adds captions to web video requires WebVTT — browsers don't read SRT for this purpose. So captioning video on a website means converting your SRT to VTT; it's the format the web caption system expects.
With a track element inside your HTML5 <video>: <track kind="captions" src="subtitles.vtt" srclang="en" label="English">. Browsers then show the captions with the video's built-in caption controls. The VTT file must be served from your site alongside the video.
The converter adds the required "WEBVTT" header line, changes timestamp separators from commas (00:01:30,500) to periods (00:01:30.500), and adjusts structure. Caption text and timing transfer directly — the change is mostly format housekeeping.
Neither — they suit different contexts. SRT for universal compatibility (players, editors, platforms); VTT for HTML5 web video specifically (and it supports styling SRT can't). Convert to whichever your destination needs; keep SRT as the universal master.
Yes — our VTT to SRT converter reverses it, for when you need the universal SRT format (editors, players, platforms) from web VTT captions. The two converters handle both directions of the common subtitle pair.

Learn more

How to Add Subtitles and Captions to Your Videos

Most social video is watched on mute. Subtitles boost views, accessibility and SEO. Here is how captions work and how to handle SRT and VTT files.

Read the guide

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