Convert VTT to SRT Online Free

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Converts to SRT on secure servers · 1 free a day, files up to 25 MB · no signup

Your first conversion each day is free (files up to 25 MB). A $2.99 one-time Day Pass unlocks 24 hours and ends by itself.

Convert WebVTT subtitle files to industry-standard SRT format. Drop your VTT file into the converter above and get an SRT file in seconds. Your file is uploaded over an encrypted connection and converted on our server. ChangeThisFile supports 1,000+ conversion routes, and your first conversion each day is free.

By ChangeThisFile Team · Last updated: October 2026

Quick Answer

To convert VTT to SRT, drop your WebVTT subtitle file into the converter above. Your file is uploaded over an encrypted connection and converted on our server. Free with no signup required.

First daily conversion free No signup required Encrypted transfer · Async jobs kept up to 24h Queued when needed Updated October 2026

VTT vs SRT: Format Comparison

Key differences between the two formats

Feature	WebVTT	SRT
File header	WEBVTT header required	No header, starts with cue 1
Timecode format	HH:MM:SS.mmm (milliseconds)	HH:MM:SS,mmm (comma separator)
Cue identifiers	Optional text IDs for cues	Sequential numbers only
Styling support	CSS classes, position, alignment	Basic HTML tags only
Browser support	HTML5 video players	Video players, editing software
Platform adoption	Web standard (W3C)	Industry standard (legacy)
Positioning	Advanced positioning and regions	Basic centering and alignment
Best for	Web video, accessibility	Broadcast, DVD, legacy systems

When to Convert

Common scenarios where this conversion is useful

Broadcasting and television workflows

Convert WebVTT subtitles from web content to SRT for broadcast television, cable networks, and traditional media production pipelines that require the industry-standard SRT format for compatibility with professional editing suites.

DVD and Blu-ray mastering

Physical media authoring tools typically require SRT subtitle files. Convert your WebVTT subtitles from streaming content to SRT format for DVD/Blu-ray production and disc mastering workflows.

Legacy video player compatibility

Older media players, set-top boxes, and embedded video systems may not support WebVTT but universally read SRT files. Convert to ensure subtitle compatibility across all playback devices.

Subtitle workflow migration

When transitioning content from web platforms to traditional video distribution, convert WebVTT subtitles to SRT format to maintain subtitle tracks without recreation, preserving timing and text content across different delivery systems.

Accessibility compliance documentation

Some accessibility auditing tools and compliance platforms require SRT format for subtitle verification. Convert WebVTT files to SRT to meet specific regulatory requirements or client deliverable specifications.

Who Uses This Conversion

Tailored guidance for different workflows

Video Editors & Subtitlers

Convert VTT caption files to SRT for the subtitle track your editor or delivery spec requires
Move VTT subtitles into SRT to hand off to an editor working in a different tool

After converting to SRT, confirm the cue timings still line up with the video

Check that line breaks and special characters survived the VTT to SRT conversion

Content Creators & YouTubers

Convert VTT captions to SRT to upload alongside your video on YouTube, Vimeo, or social platforms
Turn a VTT caption file into SRT to make your video clearer and more accessible

Keep individual SRT cues short (about one to two lines) so captions stay readable on screen

Preview the SRT captions on the actual video to catch any timing drift before publishing

Accessibility & Localization Teams

Convert VTT subtitles to SRT to meet the caption format an accessibility or compliance spec requires
Prepare VTT captions as SRT to hand to translators or a localization workflow

Speaker labels and on-screen positioning only carry over if SRT supports them, so spot-check the result

Validate the SRT file in a caption checker to catch overlapping cues or malformed timestamps

How to Convert VTT to SRT

1

Select your VTT file

Drag and drop your WebVTT subtitle file into the converter area, or click "browse" to select a file from your device.
2

Automatic format conversion

Your file is uploaded over an encrypted connection and converted on our server.
3

Download your SRT file

Click the download button to save the converted SRT subtitle file to your device. Import it into video editing software, media players, or broadcast systems.

Automate this conversion

Convert VTT to SRT via API

Integrate this conversion into your pipeline with 3 lines of code. Free tier: 25 conversions/month.

curl -X POST https://changethisfile.com/v1/convert \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@input.vtt" \
  -F "target=srt" \
  -o output.srt --fail

const form = new FormData();
form.append('file', fileInput.files[0]);
form.append('target', 'srt');

const res = await fetch('https://changethisfile.com/v1/convert', {
  method: 'POST',
  headers: { 'Authorization': 'Bearer YOUR_API_KEY' },
  body: form
});
const blob = await res.blob(); // your converted SRT file

Replace YOUR_API_KEY with your free key — no credit card needed.

Get a free API key

Frequently Asked Questions

Does converting VTT to SRT preserve timing accuracy?

Yes. Timing precision is maintained during conversion. WebVTT uses HH:MM:SS.mmm format while SRT uses HH:MM:SS,mmm (comma instead of period for milliseconds), but the actual timing values are preserved to the millisecond level for frame-accurate subtitle display.

Are WebVTT styling and positioning preserved in SRT?

No. Advanced WebVTT features like CSS classes, positioning coordinates, and region definitions are stripped during conversion since SRT only supports basic HTML formatting tags like <b>, <i>, and <u>. The text content and timing are preserved, but visual styling is lost.

Will VTT cue identifiers become SRT sequence numbers?

Not directly. WebVTT allows custom text identifiers for cues, while SRT requires sequential integers starting from 1. The converter automatically generates numbered sequence (1, 2, 3...) for all cues regardless of the original VTT identifiers.

Is my subtitle file uploaded to a server?

This conversion runs on our server, so your file is uploaded over an encrypted connection. Files up to 15MB are deleted as soon as the converted file is sent back; larger files run as a background job and are deleted automatically about a day later. We don't share your files.

How does the converter handle VTT NOTE blocks?

VTT NOTE blocks (comments) are stripped from the output since SRT format does not support comment syntax. Only the actual subtitle cues with timings and text are converted to the SRT format.

Can I convert VTT files with multiple text tracks?

The converter processes the primary text track from the VTT file. If your VTT contains multiple language tracks or alternative text sources, only the main subtitle content will be converted to SRT format.

Does this work with VTT files that have overlapping cue times?

Yes. WebVTT allows overlapping cue display times, and these timing relationships are preserved in the SRT output. Media players that support overlapping subtitles will display multiple cues simultaneously when the SRT file is loaded.

What is WebVTT format?

WebVTT (Web Video Text Tracks) is the W3C standard for subtitle and caption files in HTML5 video. It supports advanced features like CSS styling, positioning, and metadata that make it ideal for web video accessibility and rich subtitle presentation.

Why would I convert WebVTT to SRT?

SRT is the most widely supported subtitle format across video editing software, broadcast systems, DVD authoring tools, and legacy media players. Convert when you need maximum compatibility or when working with professional video production workflows that require SRT format.

Can I convert SRT back to VTT if needed?

Yes. ChangeThisFile also supports SRT to VTT conversion. However, since SRT lacks WebVTT's advanced features (styling, positioning, regions), the reverse conversion will produce a basic WebVTT file without the rich formatting capabilities of the original format.

How large a VTT file can I convert?

Free conversions accept files up to 25MB. A one-time $2.99 Day Pass raises the limit to 100MB and unlocks unlimited conversions for 24 hours.

Does this work on mobile devices?

Yes. ChangeThisFile runs in any modern mobile browser, including Safari on iOS and Chrome on Android. No app installation is needed. Select your VTT file from local storage, cloud drives, or file management apps.

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