Subtitle Converter

One tool instead of five

Subtitles arrive in whatever the last piece of software produced: SubRip from a transcription service, WebVTT from a web player, SBV from YouTube, ASS or SSA from anything to do with anime. This converter accepts all five and writes the three you are likely to want — SubRip for editors and platforms, WebVTT for the web, or plain text when you only need the words.

The format is read from the file

Extensions lie. A caption saved as .txt, or an SRT renamed to .vtt because a form demanded it, is common enough that guessing from the name is unreliable. So the file is inspected instead: a WEBVTT header means WebVTT, a [Script Info] or [Events] section means ASS or SSA, an arrow between two timestamps means SubRip, and a pair of timestamps separated by a comma means SBV. The detected format is shown before you convert, and converting a file to the format it already is has no purpose, so that option is taken off the list.

What each output gives you

SubRip is the safe default — numbered cues, comma milliseconds, accepted almost everywhere. WebVTT is what an HTML5 video track needs: a WEBVTT header and period milliseconds. Plain text is the transcript with the timecodes removed, for when you want to read, search or edit the words rather than play them. Converting from ASS also drops styling and positioning, since SubRip and plain text can hold neither.

It runs on your machine

Detection, parsing and conversion all happen in your browser. Nothing is uploaded, nothing is stored, and no account is needed. Files up to 10 MB are accepted.