Subtitle editor & converter

Edit SRT / VTT dialogue and cue times, shift sync, merge tracks or split a subtitle file. Files and entered content are not sent to or stored on a server.

How to use

Edit SRT / VTT dialogue and cue times, shift sync, merge tracks or split a subtitle file.

Supported formats & limits

SRT / VTT → SRT / VTT / TXT

Processing stays in this browser. File formats and available memory may limit the result.

Merge keeps original timestamps for tracks of the same video. Split clips crossing cues and can rebase the second part to zero.

Subtitle editor & converter User guide

Instructions

Choose encoding and open a subtitle, or paste SRT / VTT.
Edit start / end seconds and dialogue. Apply a sync shift if needed.
Save SRT, VTT or dialogue TXT; split into two files at a chosen time.

Example

Input / settings

1.5–3.0 s · shift −0.5 s

Result / checks

1.0–2.5 s