Creator subtitle tool

SRT to VTT Converter

Convert SRT subtitles to WebVTT in your browser. Paste subtitle text or upload an SRT file, preview the VTT output, then copy or download the result.

SRT to WebVTTCurrent conversion runs locallyCopy or download output

SRT input

Output preview

WebVTT output

When to use this converter

Use this tool when you already have an SRT caption file and need a WebVTT file for a web player, publishing workflow, or subtitle test. It keeps the task focused on format conversion, not transcription.

What changes in the file

The converter adds the WebVTT header and changes SRT comma timestamps like 00:00:01,500 into WebVTT dot timestamps like 00:00:01.500. Subtitle text is preserved.

When not to use it

Do not use this page if you need automatic transcription from audio or video, translation, caption editing, or burned-in subtitles. This tool only converts an existing SRT subtitle file into WebVTT.

Common conversion errors

Conversion can fail when a subtitle block has no timing line, uses an invalid timestamp, has an end time before the start time, or contains text that is not actually SRT subtitle data.

SRT vs VTT

SRT and VTT are both text subtitle formats, but WebVTT has a required header and uses dot-based milliseconds for timestamps.

Full name

SubRip Subtitle

WebVTT

Typical extension

.srt

.vtt

Timestamp milliseconds

Comma, such as 00:00:01,500

Dot, such as 00:00:01.500

Header

No required file header

Starts with WEBVTT

Common use

General subtitle files and caption exports

Web video, HTML5 video, and web publishing workflows

Example SRT input

1
00:00:01,500 --> 00:00:03,000
Welcome to the video.

Example VTT output

WEBVTT

00:00:01.500 --> 00:00:03.000
Welcome to the video.

How to convert SRT to VTT

Paste your SRT text or upload a .srt file.
Click Convert to VTT and review the generated WebVTT output.
Copy the result or download the .vtt file.
Preview the captions in your target video tool before publishing.

Subtitles out of sync?

Shift every SRT or VTT timestamp earlier or later before converting the file.

VTT to SRT Open time shifter

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FAQ

What is the difference between SRT and VTT?

SRT is a common plain subtitle format that uses comma-based milliseconds. VTT is WebVTT, a subtitle format often used for web video and HTML5 video.

Can I use VTT subtitles on YouTube?

YouTube supports several subtitle formats, including WebVTT. Always review the uploaded captions inside YouTube Studio before publishing.

Does this upload my subtitle file?

No. The current converter reads the SRT text in your browser and generates the WebVTT output locally.

Why does my SRT file fail to convert?

The most common reasons are missing timing lines, invalid timestamps, an end time that comes before a start time, or a file that is not actually SRT.

Can I convert VTT back to SRT?

Yes. Use the separate VTT to SRT Converter when you need numbered SubRip output for an editor, player, or subtitle workflow.

Does this tool transcribe audio or video?

No. This converter does not create subtitles from audio or video. Use it when you already have an SRT file and need a VTT file.