What is the difference between SRT and WebVTT?

SRT uses comma decimal separators (00:01:20,000) and sequential cue numbers. WebVTT uses periods (00:01:20.000), starts with a WEBVTT header, and is the native HTML5 video standard.

How does subtitle time shifting work?

Entering a positive millisecond value (e.g. +500) delays all subtitle cues by 0.5s, while a negative value (e.g. -500) advances them earlier to synchronize with video.

Subtitle Format Converter & Time Offset Shifter

Convert subtitle captions between SubRip (.srt), WebVTT (.vtt), SubStation Alpha (.ass), Timed Text (.ttml), and plain text transcripts with millisecond synchronization.

INPUT SUBTITLES (AUTO-DETECTED FORMAT) 0 cues

CONVERTED SUBTITLE OUTPUT WebVTT

Frequently Asked Questions

How do I extract a clean transcript without timestamps?

Select Plain Text Transcript (.txt) in the target dropdown and click Convert. All sequence numbers and timing tags will be stripped, leaving clean paragraphs.

Are video or audio files required?

No. You only need the subtitle text file. QuickCoderHub performs all format parsing and mathematical time shifting directly in your browser.