✳ FREE · NO UPLOAD
SRT to VTT converter
Convert a .srt subtitle file to WebVTT in your browser. Adds the WEBVTT header and switches the millisecond separator, leaving your caption text exactly as written.
Subtitle files are plain text, so this runs entirely in the page - no upload, no processing engine to load.
Worth knowing
- WebVTT is what HTML5 <track> elements require; SRT will not load in a browser player.
- Cue text is copied verbatim - no rewrapping, no spelling changes.
Koldflux generates and styles captions as part of its render pipeline.
Automate this in Koldflux