SRT vs VTT vs TXT — Which Subtitle Format Should You Actually Use?

I've lost count of how many times someone has asked me: "I exported my subtitles as SRT but the platform wants VTT — what do I do?" Or the reverse. Or the even more confusing: "I just have a plain text transcript, how do I turn it into actual subtitles?"

Subtitle formats shouldn't be this confusing, but somehow they are. So here's the guide I wish I'd had when I started working with video captions — no jargon, no fluff, just what you actually need to know.

#The Three Formats at a Glance

Before we dive in, here's the quick overview. If you're in a rush, this table might be all you need:

Still here? Good. Let's break each one down properly.

#SRT — The Universal Subtitle Format

SRT stands for SubRip Text, and it's been around since the late '90s. It was originally created for ripping subtitles from DVDs (hence the name), but it's become the de facto standard for subtitles across the internet. If a platform says it accepts subtitles, it almost certainly accepts SRT.

#What an SRT File Looks Like

1
00:00:01,500 --> 00:00:04,000
Hey everyone, welcome back to the channel.

2
00:00:04,500 --> 00:00:07,800
Today we're going to talk about something
that I get asked about constantly.

3
00:00:08,200 --> 00:00:11,600
Subtitle formats. Exciting, I know.

Pretty straightforward, right? Each subtitle block has a sequence number, a timestamp range (using commas for milliseconds — this trips people up), and the actual text. Blocks are separated by blank lines.

#Where SRT Works Best

• YouTube — upload SRT files directly in YouTube Studio under the subtitles section. YouTube will sync them with your video automatically.
• Social media — Facebook, LinkedIn, and most platforms that support uploaded captions use SRT.
• Video players — VLC, Windows Media Player, QuickTime, and basically every desktop player can load external SRT files.
• Video editors — Premiere Pro, DaVinci Resolve, Final Cut Pro all import SRT natively.

#VTT — The Web Developer's Subtitle Format

VTT stands for Web Video Text Tracks, and it's the format that was purpose-built for the web. If you've ever used the HTML5 <track> element to add captions to a video on a website, you've used (or should be using) VTT.

#What a VTT File Looks Like

WEBVTT

00:00:01.500 --> 00:00:04.000
Hey everyone, welcome back to the channel.

00:00:04.500 --> 00:00:07.800
Today we're going to talk about something
that I get asked about constantly.

00:00:08.200 --> 00:00:11.600
Subtitle formats. Exciting, I know.

Looks almost identical to SRT, right? The differences are subtle but important. VTT files must start with "WEBVTT" on the first line. Timestamps use dots instead of commas for milliseconds. Sequence numbers are optional. And — this is the big one — VTT supports CSS-like styling.

#The Styling Advantage

Here's where VTT really separates itself from SRT. You can control text position, alignment, color, and even create speaker identification styles. For example, you can position captions at the top of the screen for certain speakers, or color-code dialogue. Most web video players (like Video.js, Plyr, or even the native HTML5 player) respect these styles.

That said, I'll be real — most people never use VTT's advanced styling features. If you're just adding basic captions to a website video, a plain VTT file without any fancy styling works perfectly fine.

#Where VTT Works Best

• Your own website — the HTML5 <track> element specifically requires VTT format. SRT won't work here.
• Web applications — if you're building any kind of video app or LMS, VTT is the standard.
• Accessibility compliance — WCAG 2.1 guidelines reference WebVTT as the recommended caption format for web content.
• Streaming platforms — many HLS and DASH streaming setups use VTT for live captions.

#TXT — The Overlooked Format That Secretly Matters

Plain text gets no respect in subtitle discussions, and honestly, that's a mistake. A plain text transcript isn't a subtitle file in the traditional sense — it doesn't have timestamps, so you can't sync it with video playback. But it serves purposes that SRT and VTT literally cannot.

#Why You Should Always Generate a TXT Version

• SEO goldmine — search engines can't watch your videos, but they absolutely can read text. Pasting a transcript on your video's webpage gives Google indexable content full of natural, long-tail keywords.
• Blog post drafts — I regularly transcribe podcast episodes and conference talks to TXT, then restructure them into blog posts. It cuts writing time by 60-70%.
• Show notes and summaries — listeners and viewers love having a text version they can skim, search, and reference later.
• Meeting minutes — transcribe a Zoom call, clean up the text, and you have instant meeting notes without anyone having to take them live.
• Accessibility — some users prefer reading over watching. A full text transcript gives them that option.

#Converting Between Formats

This is where people usually get stuck, so let me save you some frustration.

#SRT to VTT (Easy)

This conversion is almost trivial. Replace commas with dots in timestamps, add "WEBVTT" to the top, and optionally remove sequence numbers. You can do it manually in a text editor for small files. For larger files or batch conversion, most subtitle tools (including Editif) handle this automatically when you export.

#VTT to SRT (Easy)

Same thing in reverse. Remove the "WEBVTT" header, replace dots with commas in timestamps, add sequential numbering, and strip any VTT-specific styling. Again, any decent tool does this in one click.

#TXT to SRT or VTT (Harder — This Is Where AI Helps)

Going from plain text to timed subtitles is fundamentally different because you need to generate timestamps. A text file has no timing information — someone (or something) needs to figure out when each word is spoken in the audio. This is exactly the problem that AI speech recognition solves.

Editif's subtitle tool handles this specifically: you upload your video plus your text, and the AI listens to the audio, matches your words to the speech, and generates perfectly timed SRT or VTT output. It's the one conversion you genuinely can't do manually (unless you enjoy pausing a video 400 times and noting down timestamps by hand, which I do not).

#Common Mistakes That Will Waste Your Time

I've made all of these at some point, so learn from my suffering:

• Using commas instead of dots (or vice versa) — SRT uses commas in timestamps (00:01:23,456). VTT uses dots (00:01:23.456). Mix them up and your subtitles won't load. I've spent 20 minutes debugging a "broken" subtitle file only to realize I had the wrong punctuation.
• Forgetting the WEBVTT header — every VTT file must start with the text "WEBVTT" on line one. Without it, browsers silently refuse to load the file with zero error messages. Delightful.
• Wrong encoding — subtitle files should be UTF-8. If you see weird characters instead of accents or special symbols, re-save the file as UTF-8. This is especially common when working with non-English languages.
• Overlapping timestamps — if subtitle block 1 ends at 00:00:05.000 and block 2 starts at 00:00:04.500, some players will glitch or stack the text on screen. Always make sure your timestamps don't overlap.
• Trying to use SRT with HTML5 video — the <track> element only supports VTT. If you drop an SRT file in there, nothing will happen. No error, no warning, just... silence. Convert to VTT first.

#So Which Format Should You Use?

After working with all three formats extensively, here's my honest recommendation:

Generate all three. Seriously. When you transcribe or subtitle a video, export SRT, VTT, and TXT. Store them all. The file sizes are tiny (a few kilobytes each), and having all three means you're covered no matter where you need to use them. You'll kick yourself if you subtitle a video, only export SRT, and then six months later need VTT for your new website.

Editif exports all three formats from a single transcription, which is exactly why I use it — one process, three outputs, no re-work.

#The Bigger Picture: Why This Matters for Your Content

Subtitle formats might seem like a dry, technical topic. But getting this right has real consequences for your content's reach. Videos with proper captions get more views (85% of Facebook video is watched on mute). Websites with VTT captions meet accessibility standards. Blog posts with full transcripts rank better in search results.

The format you choose is less important than actually having subtitles and transcripts in the first place. If you're currently publishing video content without any captions at all, you're leaving views, accessibility, and SEO value on the table. Pick a format, generate your captions, and start from there. You can always convert later.