SRT to VTT Converter

A command line tool and JavaScript library that converts subtitle files between SubRip (.srt) and WebVTT (.vtt) formats.

Built by StageCaptions, browser-based live captioning software for live events, conferences, and broadcasts.

Usage

Convert SRT to VTT:

npx @stagecaptions/srt-to-vtt input.srt output.vtt

Convert WebVTT back to SRT:

npx @stagecaptions/srt-to-vtt input.vtt output.srt

Install

npm install @stagecaptions/srt-to-vtt

JavaScript API

import { srtToVtt, vttToSrt } from "@stagecaptions/srt-to-vtt";

const vtt = srtToVtt(`1
00:00:01,000 --> 00:00:03,500
Hello world.`);

const srt = vttToSrt(`WEBVTT

00:00:01.000 --> 00:00:03.500
Hello world.`);

Validation

import { validateSrt, validateVtt } from "@stagecaptions/srt-to-vtt";

const srtWarnings = validateSrt(srtText);
const vttWarnings = validateVtt(vttText);

License

MIT