SBV Editor — Edit YouTube Captions Online

How it works

1. Step 1

   Drop your .sbv file into the box above (VTT and SRT work too).

2. Step 2

   Edit subtitle text and timing inline; add or delete cues as needed.

3. Step 3

   Download the result as a clean, renumbered .sbv file.

Frequently asked questions

What is an SBV file?

SBV (SubViewer) is the simple caption format YouTube uses for caption downloads: a plain-text file of timed cues with 0:00:00.000 timestamps. It carries no styling, which makes it easy to edit and convert to SRT or VTT.

How do I edit an SBV file online?

Load your .sbv file above and every subtitle appears as an editable row: fix the text, adjust start and end times, add or delete cues, then download the corrected SBV. No account needed.

Can I edit the subtitle timing too?

Yes. Every cue has editable start and end times, and you can drag cues on the timeline to retime them precisely.

Can I add or remove subtitles?

Yes. Insert a new cue after any row or delete one — cue numbers are renumbered automatically in the downloaded file.

Does the editor upload my subtitles?

Your video never leaves your device, and editing happens in your browser. Your subtitle draft is backed up anonymously for 24 hours so you can pick it up after signing in — nothing else is uploaded.

Can I open VTT or SRT files in the SBV editor?

Yes. VTT and SRT files load fine, and you can download the result as SBV, VTT, SRT, or plain text.

What if I need to edit subtitles against the actual video?

You can already preview against your video here — load it locally, nothing uploads. For AI transcription, translation, and styled captions burned into the video, import your work into the full Captioner editor — free to start.