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SRT to VTT Converter — Convert SRT to VTT Online

Point this SRT to VTT converter at a SubRip file and get a standards-compliant WebVTT file back in one click. The conversion runs locally in your browser, keeps every millisecond of timing intact, and outputs a .vtt ready for HTML5 players, courses and streaming platforms.

Reviewed by the SRT Tools team · Updated

14
free tools
6
languages
0
file uploads, ever
2 MB
max file size
10,000
cues per file
SRT→VTT

Drop your SRT / VTT / LRC / ASS / TXT file here, or click to browse

Parsed instantly in your browser — nothing is uploaded. Max 2 MB.

Max 2 MB per file · parsed instantly · nothing uploaded

Private by design: parsing, conversion and download all happen on your device. No file content ever leaves your browser.

Your preview appears here

Upload a file, paste subtitle text, or load the sample to see the timeline, convert and download.

How to Convert SRT to VTT in 4 Steps

SRT to VTT conversion is mostly a format translation: timestamps switch from a comma to a dot, the WEBVTT header goes on top, and the text stays untouched. Here is the whole workflow.

  1. 1

    Upload or paste your SRT

    Drop the .srt file into the converter or paste its text. The SRT to VTT tool parses cues, timings and line breaks immediately, with warnings for anything unusual.

  2. 2

    Check the cue preview

    Every parsed cue appears with start and end times, so you can confirm the SRT to VTT conversion starts from a healthy source file before exporting.

  3. 3

    Convert SRT to VTT locally

    The converter writes a WEBVTT header, rewrites each timestamp with dot-decimal milliseconds and renumbers the cues — all in your browser, in under a second.

  4. 4

    Download the .vtt file

    Save the WebVTT output with a clean filename derived from your original SRT, then attach it to a <track> element or upload it to your platform.

Why Convert SRT to VTT?

Both formats carry the same subtitle data, yet the web picked a winner: HTML5 <track> captions require WebVTT, so any SRT subtitle must be converted before a browser will display it. That single requirement explains most SRT to VTT traffic — video platforms, online courses and accessibility overlays all speak VTT natively.

The second reason is precision. A careless SRT to VTT conversion that rounds timestamps or rewrites text can desynchronise short, fast dialogue. This converter copies your milliseconds exactly as they appear in the SRT file, only changing the punctuation around them.

Native HTML5 playback

The .vtt produced by the SRT to VTT conversion plugs straight into <track src> captions on any modern browser, no plugins or JS players needed.

Exact timestamp mapping

00:00:01,200 in SRT becomes 00:00:01.200 in VTT — same milliseconds, different separator. Round-tripping the files back and forth loses nothing.

Renumbered, tidy cues

SRT cue numbers are optional in VTT, so the converter renumbers every cue and drops stale counters that confuse strict players.

No data leaves your tab

The SRT to VTT conversion happens in JavaScript on your device. Nothing is uploaded — safe for client work and unreleased material.

What Changes When You Convert SRT to VTT

A visual diff of the same subtitle in both formats shows how small the SRT to VTT transformation really is.

The same cue before and after SRT to VTT conversion

SRT
1
00:00:01,200 --> 00:00:03,400
Hello, world!

VTT
WEBVTT

00:00:01.200 --> 00:00:03.400
Hello, world!

The WEBVTT header

Every valid WebVTT file starts with the word WEBVTT on the first line. The converter adds it automatically — this is the most common breakage when people convert SRT to VTT by hand and the file is rejected.

Dot-decimal milliseconds

SRT uses a comma (00:00:01,200) while VTT demands a dot (00:00:01.200). The SRT to VTT converter rewrites every start and end timestamp; hours, minutes, seconds and milliseconds are preserved digit for digit.

Cue text untouched

Dialogue, line breaks, punctuation and Unicode survive the SRT to VTT conversion unchanged. VTT additionally supports optional styling and cue settings, but nothing is injected — your text stays exactly as authored.

Batch SRT to VTT workflows

Course publishers often convert dozens of SRT to VTT files in one sitting: load, glance at the cue count, download, repeat. Since the SRT to VTT conversion is instant and local, a ten-lesson module takes minutes — and every output carries the correct WEBVTT header the first time.

Tips for Clean SRT to VTT Results

Three habits prevent almost every broken conversion. First, start from a parseable SRT: if the preview shows red errors, fix those lines before exporting — the download stays disabled until the SRT side is clean. Second, avoid editors that save SRT files as rich text; the converter will flag the junk lines rather than guess. Third, after you convert SRT to VTT, open the result in the VTT file viewer to confirm the WEBVTT header and cue count match the original.

Need the opposite direction? The VTT to SRT converter handles the return trip, stripping WebVTT metadata that SRT cannot represent. For plain transcripts, SRT to TXT removes timing altogether.

SRT to VTT — Frequently Asked Questions

Sources & specifications