Will this translate the captions?

No. It changes the subtitle format and optional timing only; the caption language stays the same.

What if a negative offset moves a cue before zero?

The conversion is rejected rather than clipping or dropping captions. Choose a smaller negative offset.

SRT to VTT Converter

Convert SRT subtitles to WebVTT in your browser. Preserve multiline captions, adjust timing in milliseconds, validate timestamps, and download a UTF-8 VTT file.

Timing offset (seconds)

SRT

UTF-8

SubRip (.srt)

WebVTT

WEBVTT

1
00:00:01.250 --> 00:00:03.500
Hello, world!

2
00:00:04.000 --> 00:00:06.000
A second subtitle.

LiveSubtitle cues: 2

UTF-8 SRT up to 2 MB. Positive offsets delay subtitles; negative offsets show them earlier. Caption text and line breaks are retained in order. No video upload is needed.

Format references

W3C — WebVTT format

Tool page updated: 2026-10-25

SRT

WebVTT

Guide and example

Related tools

Format references