Convert SRT subtitles to WebVTT, the format HTML5 video players use.
Choose an SRT file
.srt files
Need the other direction? VTT → SRT converter →
Three steps and you are done
Choose a file
Drag and drop a .srt file or pick one from your computer.
Convert
It converts right in your browser and shows you a preview.
Download
Save it as a .vtt file with the same name.
The subtitle text stays the same; only the notation changes to fit the format.
| Item | SRT (Before) | VTT (After) |
|---|---|---|
| First line | SRTNothing | VTTWEBVTT header |
| Millisecond separator | SRTComma (00:00:01,000) | VTTPeriod (00:00:01.000) |
| Cue numbers | SRTRequired | VTTOmitted (optional in VTT) |
| Subtitle text and timing | SRTUnchanged | VTTUnchanged |
1 00:00:01,000 --> 00:00:03,500 Hi there, welcome to MoaSub. 2 00:00:04,000 --> 00:00:06,200 This is a subtitle conversion example.
WEBVTT 00:00:01.000 --> 00:00:03.500 Hi there, welcome to MoaSub. 00:00:04.000 --> 00:00:06.200 This is a subtitle conversion example.
SRT is the most widely used subtitle format in desktop players and video editors, but web browsers cannot read SRT directly. The track element of HTML5 video only supports WebVTT (.vtt), so to add subtitles to a website or web app you need to convert them to VTT.
The two formats are almost identical, but the details differ. VTT needs a WEBVTT header on the first line and uses a period (.) instead of a comma (,) before the milliseconds. This converter handles those differences for you and keeps the subtitle text unchanged.
3 questions people ask before converting
No. The timestamps and file header are rewritten to the WebVTT spec and cue numbers are dropped. The subtitle text and timing stay exactly the same.
In the track element of HTML5 video, web players such as Video.js and Plyr, and most online course platforms (LMS).
Right now it converts one file at a time. If you have several, use "Convert another" after each download.
Jump straight to the format you need
Need subtitles for a video?
These tools are made by MoaSub, an AI subtitle service from Korea. Upload a video and it transcribes and translates the speech in 6 languages, including English. The app is in Korean for now.
