SRT vs VTT vs TXT: Differences, Examples & Which to Use

Published Oct 15, 2026

Three file formats cover most transcript use cases: SRT, VTT, and TXT. They look similar in a text editor, but each solves a different problem, and picking the wrong one means extra work downstream.

This guide shows what each format contains, real examples side by side, and the decisions that matter: subtitles, SEO, accessibility, or just getting the words out of a video quickly.

What Are SRT, VTT, and TXT?

All three are plain-text files. The difference is what they carry beyond the spoken words:

SRT (SubRip Subtitle) — sequential numbers, timestamps, and subtitle text. The oldest and most universal subtitle format.
VTT (WebVTT) — the web-native successor to SRT. Adds positioning, styling, and metadata for HTML5 video.
TXT — plain text with no timestamps or formatting. Just the words, in order.

What Is SRT?

SRT (SubRip Subtitle) dates to the early 2000s. Each entry has a number, a timestamp range, and subtitle text:

1 00:00:01,000 --> 00:00:04,500 Welcome to this tutorial. 2 00:00:05,000 --> 00:00:08,200 Today we compare three formats.

Timestamps use HH:MM:SS,mmm format. No header, no metadata, no styling beyond basic positioning. SRT works on YouTube, Vimeo, Facebook, every major video editor, and all media players. If you need one subtitle file that works everywhere, SRT is the safe choice.

What Is VTT?

WebVTT is the W3C standard for HTML5 <track> elements. It extends SRT with a header and styling cues:

WEBVTT 00:00:01.000 --> 00:00:04.500 Welcome to this tutorial. 00:00:05.000 --> 00:00:08.200 Today we compare three formats.

Key differences: the file starts with WEBVTT, timestamps use a period instead of a comma, cue numbers are optional, and you can add positioning like line:80% or align:start. VTT also supports chapters and metadata tracks. If you are embedding video on a website, VTT is what the browser expects.

What Is TXT?

A TXT transcript is the spoken words in reading order, no timestamps, no numbering:

Welcome to this tutorial. Today we compare three formats. SRT is the oldest and most universal subtitle file type...

TXT is right when you care about the words but not when they were spoken. Blog posts, study notes, search indexes, AI processing, and accessibility text all work better as plain text than as timestamped subtitles.

Side-by-Side Comparison

The same 10 seconds in all three formats:

SRT: 1 00:00:01,000 --> 00:00:04,500 Welcome to this tutorial. 2 00:00:05,000 --> 00:00:08,200 Today we compare three formats.

VTT: WEBVTT 00:00:01.000 --> 00:00:04.500 Welcome to this tutorial. 00:00:05.000 --> 00:00:08.200 Today we compare three formats.

TXT: Welcome to this tutorial. Today we compare three formats.

The spoken content is identical. SRT and VTT wrap it in timing data; TXT strips the timing away.

Key Differences

Timestamps. SRT and VTT carry per-cue start and end times. TXT has none.
Numbering. SRT requires it; VTT makes it optional; TXT has no cues.
Header. VTT starts with WEBVTT. SRT and TXT do not.
Styling. VTT supports positioning and CSS classes. SRT supports basic tags. TXT supports none.
File size. TXT is 40-60% smaller than SRT or VTT for the same content.
Platform support. SRT works on nearly every video platform. VTT is the web standard. TXT is universal for reading but not for subtitles.

When to Use SRT

Pick SRT for subtitle files on video platforms:

Uploading subtitles to YouTube, Vimeo, Facebook, or LinkedIn.
Importing into a video editor (Premiere, DaVinci Resolve, Final Cut).
Burning subtitles with FFmpeg or HandBrake.
Sharing with collaborators — SRT is the format everyone can open.

SRT is the universal subtitle interchange format. When in doubt, start with SRT — it converts to anything else later.

When to Use VTT

Pick VTT for web video:

Embedding subtitles with the HTML5 <track> element.
Building a custom web video player.
Adding chapters or metadata tracks.
Controlling subtitle positioning or styling through CSS.

If your subtitles render in a web player rather than burned into the video, VTT is the correct choice.

When to Use TXT

Pick TXT when you want the words without timing:

Publishing a transcript alongside a video for readers.
Creating searchable content for SEO — search engines index plain text directly.
Feeding text into AI tools for summarization or translation.
Generating blog posts or articles from video content.
Providing a text alternative for accessibility.

TXT is the most versatile format for content workflows. Smallest file, easiest to edit, simplest to process.

Which Format Is Best for SEO?

TXT. Search engines crawl text, not subtitle timestamps. A plain-text transcript on the same page as your video gives search engines the full spoken content to index:

Long-tail keywords spoken in the video become searchable.
More indexable content can improve rankings.
Users searching for a phrase they heard can find the page directly.

SRT and VTT help indirectly when uploaded to YouTube, but for on-page SEO, TXT is what matters.

Which Format Is Best for Accessibility?

Both serve different needs:

SRT or VTT for synchronized captions. WCAG requires these for pre-recorded video (Level A).
TXT for text alternatives. Satisfies the requirement when synchronized captions are not feasible, and helps deaf-blind users or those who prefer reading.

For most compliance scenarios, provide both: synchronized subtitles for the player, and a plain-text transcript on the page.

How to Get These Formats from a Video

ToTextly extracts transcripts from YouTube, TikTok, Instagram and Facebook. Depending on the platform:

Copy the transcript to your clipboard — available for every extraction.
Download as TXT — available for every extraction.
Download as SRT — available when the source provides reliable timing data.

For YouTube, ToTextly reads the caption track the video already has. TikTok can use AI transcription when native captions are unavailable. Instagram results use audio transcription. Facebook requires accessible captions and does not use an AI fallback. The output is clean text you can copy, download as TXT, or download as SRT when timing data is available.

ToTextly does not export VTT. If you need VTT, download the SRT and convert it — the structure is nearly identical, and many free tools handle it in seconds.

Quick Decision Guide

Subtitles for YouTube or a video editor? Use SRT.
Subtitles for a web player? Use VTT.
Searchable text, study notes, or AI processing? Use TXT.
Both subtitles and text? Produce SRT for the player and TXT for the page.
Not sure? SRT converts to everything, and TXT is universally useful.

Frequently Asked Questions

What is the difference between SRT and VTT?

Both are subtitle formats with timestamps, but VTT is the web-native successor. VTT starts with a WEBVTT header, uses a period instead of a comma for milliseconds, and supports styling cues SRT cannot. SRT has broader support across video editors; VTT is the HTML5 standard.

Can I convert SRT to VTT?

Yes. FFmpeg handles it with one command (ffmpeg -i input.srt output.vtt), and many free online converters do the same. The main differences are the header line and the millisecond separator.

Which format is best for SEO?

TXT. Search engines index plain text directly. A TXT transcript on the same page as your video gives search engines the full spoken content to crawl, surfacing long-tail keywords and increasing indexable content.

Can I download SRT and TXT from ToTextly?

Yes. Every successful transcript can be copied or downloaded as TXT. SRT download is available when the source video provides reliable timing data. VTT export is not currently supported, but SRT converts to VTT easily.

Does ToTextly work for TikTok and Instagram?

Yes. ToTextly supports YouTube, TikTok, Instagram, and Facebook. For YouTube, it reads existing captions. TikTok can use AI transcription when native captions are unavailable. Instagram results use audio transcription. Facebook requires accessible captions and does not use an AI fallback.

Which format for accessibility compliance?

Provide both. SRT or VTT for synchronized captions in the video player (WCAG Level A), and a TXT transcript on the page for screen readers and text-first users.