SBV to SRT Converter
Convert a YouTube SBV file to SRT online - free, private, no upload, and you can fix timing first.
This tool converts SBV to SRT for free, entirely in your browser - open the .sbv file YouTube exported, optionally fix any timing or text issues, then export a clean .srt file. Nothing is uploaded, and your file never leaves your device.
100% private. Your subtitle file and video stay on this device - nothing is uploaded. Undo, export and autosave all run locally in your browser.
No video loaded - the editor works without one.
Load a video to see its waveform. Drag a cue block's edges to adjust timing.
Bulk actions
Shift all timings
Scale for frame-rate drift
Fixes subtitles that start fine but drift further out of sync as the video plays.
Sync to a point
Select a cue, play the video, then press M (or the button) exactly when that cue should start. Every cue shifts to match.
Find and replace
Validation 0
Keyboard shortcuts
| Space | Play / pause |
| [ / ] | Previous / next cue |
| I | Set selected cue's start to the playhead |
| O | Set selected cue's end to the playhead |
| Ctrl/Cmd+Enter | Split the focused cue at the cursor |
| Ctrl/Cmd+M | Merge selected cue with the next |
| M (during sync) | Mark sync point |
| Ctrl/Cmd+Z | Undo |
| Ctrl/Cmd+Shift+Z | Redo |
| Ctrl/Cmd+S | Export / download |
Why use this converter
Nothing is uploaded
Your SBV file stays on your machine the whole time.
Fix problems first
Shift, scale or edit text before you convert, not after.
Clean, valid SRT
Correct sequence numbers and comma-separated timestamps every time.
How to convert SBV to SRT
- Click Open subtitle file and choose your .sbv file exported from YouTube.
- Check the validation panel for anything worth fixing before you convert.
- Set the Format dropdown at the bottom to SRT.
- Click Download to save an .srt file, or Copy to clipboard to paste it elsewhere.
Common problems when converting SBV to SRT
- Not sure what actually differs: the cue text and timing stay the same - SRT just adds a sequence number to each cue and separates the timestamp pair onto its own line with an arrow instead of a comma.
- The SBV file won't load: a backwards timestamp pair is repaired automatically - check the import report for any line that couldn't be parsed.
- Subtitles drift out of sync after exporting from YouTube: that's usually a frame-rate mismatch between the source project and your video. Use Scale in the editor rather than a flat shift.
- Need to fix timing, not just convert: use the full subtitle editor - shift, scale, sync to a point and find-and-replace all work here too.
For SRT to VTT or the reverse, see SRT to VTT and VTT to SRT, or use the full subtitle editor for anything more involved, including syncing subtitles to your video. You can also browse all Meetrix features.
Frequently Asked Questions
Is this SBV to SRT converter free?
Yes, free to use with no sign-up and nothing to install.
Is my SBV file uploaded anywhere?
No. The file is read and converted entirely in your browser and is never sent anywhere.
Where do SBV files come from?
SBV (SubViewer, sometimes called YouTube captions) is the format YouTube Studio exports when you download your captions - it has no header and no sequence numbers, just comma-separated start,end timestamps.
Can I fix subtitle timing before converting?
Yes - this is a full editor, not just a format swap. Use Shift or Scale to fix sync issues, or edit any line directly, before you export to SRT.
My SBV file has no sequence numbers - is that a problem?
No, SBV never has them. SRT sequence numbers are added automatically on export.
Does this work on mobile phones?
Yes for opening a file and converting it. Timing edits are much easier with a keyboard, so we recommend desktop for detailed fixes.
Captioning at volume? Meetrix builds transcription and captioning pipelines.
For teams captioning many videos, see our self-hosted Transcriber AMI.
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