If you have ever downloaded subtitles or worked with transcriptions, you have come across .srt and .vtt files. While both do the same thing (display text synchronized with a video), they have important differences that determine when to use each one.
What is SRT format?
SRT (SubRip Text) is the oldest and most universal subtitle format. It was created by the SubRip software in the 1990s and has since become the industry de facto standard. Compatible with virtually every video editor, media player and online platform. If you are unsure which format to use, SRT is the safe choice.
What is VTT format?
VTT (WebVTT โ Web Video Text Tracks) is the modern standard for the web, defined by the W3C. It was designed specifically for HTML5 and is the format YouTube uses internally. Key difference: uses dots instead of commas for milliseconds and starts with a WEBVTT header.
SRT vs VTT: When to use each
Use SRT when: importing subtitles into Premiere Pro, Final Cut Pro, DaVinci Resolve or CapCut; playing locally with VLC; sharing with video editors; working with Plex, Kodi or Jellyfin.
Use VTT when: uploading manual subtitles to YouTube; embedding video on a website with HTML5; needing custom subtitle positioning or colors; working with eLearning platforms or web players like Video.js.
What about TXT?
TXT strips timing data and gives pure readable text. Ideal for blog posts from video content, feeding transcripts to AI tools (ChatGPT, Claude) for summarization, or archiving for search indexing.
How to convert between formats
Use LeeTuVideo's Subtitle Converter to convert SRT to VTT, SRT to TXT, VTT to SRT and more. Instant conversion โ paste the content, select output format and download.
Frequently Asked Questions
Are SRT and VTT interchangeable?
Almost always. The main differences are comma vs dot for milliseconds and the WEBVTT header. Most converters, including LeeTuVideo, convert between both in seconds without data loss.
Does YouTube accept SRT?
Yes, YouTube accepts SRT for manual subtitles, though it converts it to VTT internally. Both formats work when uploading to YouTube Studio.