SRT to VTT Converter

What is the difference between SRT and VTT?

Both SRT (SubRip Subtitle) and WebVTT (Web Video Text Tracks) are plain-text subtitle formats. The cue structure is nearly identical — a start timecode, an end timecode, and one or more lines of text per cue — but they serve different ecosystems.

SRT is the older format. It comes from the SubRip program originally written in the early 2000s and quickly became the default everywhere subtitles were involved: VLC, MPC, Premiere Pro, DaVinci Resolve, OBS, broadcast workflows. If you save subtitles in After Effects, Premiere, or any major NLE, there's a good chance the default export is SRT.

WebVTT is the W3C standard for HTML5 video. It was designed specifically for the <track> element on web pages, so any video that streams in a browser — HTML5 <video>, HLS, DASH, YouTube, Vimeo embeds — uses VTT under the hood. The format adds a mandatory WEBVTT header, swaps the comma in timestamps for a decimal point, and supports inline styling cues that SRT does not.

Side-by-side, the same two cues look like this:

1
00:00:01,000 --> 00:00:04,000
Hello, world.

2
00:00:05,500 --> 00:00:08,250
Goodbye.

WEBVTT

00:00:01.000 --> 00:00:04.000
Hello, world.

00:00:05.500 --> 00:00:08.250
Goodbye.

Three concrete differences visible above: VTT starts with a WEBVTT header, uses a decimal point in timestamps (00:00:01.000 vs SRT's 00:00:01,000), and skips the per-cue index number that SRT requires.

How to convert SRT to VTT

1. Drag your .srt file onto the drop zone above (or click to open the file picker).
2. The converter parses every cue, normalizes timestamps toHH:MM:SS.mmm, and prepends the WebVTT header. Encoding-quirks like UTF-8 BOM, CRLF line endings, single-digit hours, and missing cue numbers are handled automatically.
3. A .vtt file is generated in your browser. Click Download to save it. Nothing is uploaded anywhere.

When to use VTT instead of SRT

Use WebVTT whenever your subtitles need to play in a web browser. That includes:

• HTML5 <video> with a <track> element — Chrome, Safari, Firefox, and Edge accept only VTT here, not SRT.
• HLS and DASH streams — the subtitle track is delivered as WebVTT segments referenced from the playlist.
• Players like Plyr, Video.js, Shaka Player, and JW Player that expect WebVTT for browser playback.
• Self-hosted video on a portfolio or course site, where you want captions for accessibility and SEO.

Stick with SRT when the destination is a media player, broadcast workflow, social platform upload (YouTube, TikTok, Instagram all accept SRT directly), or any non-browser tool in the editing pipeline.

Does the conversion lose any information?

No, the SRT → VTT direction is lossless for everything SRT can express. Cue text, line breaks, and basic markup (<i>, <b>, <u>) are preserved. Cue numbers are dropped because WebVTT treats identifiers as optional and most players ignore them anyway. WebVTT can carry richer information than SRT (positioning, alignment, inline classes), but there's nothing to add when converting from SRT — those fields stay empty.