Guide
SRT vs VTT
Both are plain-text subtitle formats with timestamps. The difference is compatibility and how much control the player gets.
Last updated: 31 October 2026
TL;DR: SRT is the safest file to hand to an editor, YouTube or an older player. VTT is the web-native format for HTML5 video. If a tool asks for a subtitle file and you are unsure, export SRT first.
What each format is
SRT (SubRip)
A numbered cue list: index, start and end timestamp, then the text. It is simple and widely supported. SRT does not standardize styling or positioning; players may support unofficial tags, but you should not rely on them.
VTT (WebVTT)
Designed for the web. It supports cue settings (position, alignment, size), styling hooks and regions. It is the format HTML5 video players expect. The syntax is close to SRT, which is why conversion is usually trivial — but not every SRT extension survives conversion.
Compatibility
| Destination | Best format |
|---|---|
| YouTube upload | SRT (VTT also supported) |
| Premiere / Resolve / Final Cut | SRT |
| HTML5 video player | VTT |
| Course/LMS | SRT or VTT; check the platform |
| Archive / handoff | SRT + a plain TXT transcript |
Styling and positioning
If you need captions positioned or styled by the player, VTT is the better fit. If you need the captions to look the same everywhere, burn them into the video. A subtitle file is not a design deliverable; it is a text track.
Converting
Conversion is mostly renaming and header changes. Use the free SRT ↔ VTT converter; it runs locally. Always spot-check the first and last cues after conversion, especially if the source used styling tags.
FAQ
Should I use SRT or VTT?
Use SRT for the widest compatibility with editors, YouTube and older players. Use VTT for HTML5 video and web players that need cue settings or styling. When in doubt, export SRT.
Can I convert SRT to VTT?
Yes. The free SRT↔VTT converter runs in your browser and does not upload the file.
Does YouTube accept VTT?
YouTube supports SRT and VTT subtitle uploads. SRT is the safer default if you are also sending the file to an editor.