Upload a standard SRT file and instantly convert it into a YouTube-compatible SBV file. Processing runs locally in your browser.
Your SRT file is converted locally in your browser. No upload required.
Extract subtitles from a YouTube video or edit the converted SBV file in Subvideo Studio.
SRT uses block numbers and timestamps with a comma before milliseconds. SBV removes the block numbers and writes the start and end time on one line, separated by a comma.
1
00:00:01,000 --> 00:00:04,000
Welcome to our channel.
2
00:00:04,500 --> 00:00:07,000
Today we explain YouTube captions.0:00:01.000,0:00:04.000
Welcome to our channel.
0:00:04.500,0:00:07.000
Today we explain YouTube captions.Choose your SRT file. The converter automatically removes SRT sequence numbers and converts the timestamps into the YouTube-compatible SBV format.
SRT writes times as HH:MM:SS,mmm --> HH:MM:SS,mmm. SBV uses H:MM:SS.mmm,H:MM:SS.mmm instead. The subtitle text stays below the timecode line, but SRT block numbers are removed.
| Feature | SRT | SBV |
|---|---|---|
| Block numbers | required | not present |
| Time format | 00:00:01,000 --> 00:00:04,000 |
0:00:01.000,0:00:04.000 |
| Typical use | general subtitle uploads and video editors | older or YouTube-specific caption workflows |
SRT is usually the better default today because it is supported almost everywhere. SBV is still useful when you work with old YouTube subtitle files, archives, legacy workflows or tools that explicitly require .sbv.
SBV is a simple text format. Italic tags, colors, positioning, speaker colors or ASS effects should not be expected to survive this conversion. If styling matters, use ASS or burn the subtitles directly into the video.
Convert a normal SRT file when a YouTube-related process still expects SBV.
Keep older SBV-based workflows compatible without rewriting timecodes manually.
Switch between SRT and SBV when exchanging subtitle files with clients or older tools.
The conversion runs completely locally in your browser. Your subtitles are not uploaded to our servers.
You can also extract subtitles directly from YouTube videos and save them as SRT for editing, translation or review.
Open YouTube to SRTChoose your SubRip file (.srt) or drag and drop it into the upload field.
The tool removes SRT index numbers and converts the timestamps into YouTube-compatible SBV timecodes.
Download the finished .sbv file and use it in YouTube or legacy workflows.
SBV is a simple subtitle format made popular by YouTube. It uses timecode lines such as 0:00:01.000,0:00:04.000 followed by the subtitle text.
SRT uses block numbers and a timecode like 00:00:01,000 --> 00:00:04,000. SBV has no block numbers and writes start and end time comma-separated on one line.
Use SBV only when a specific YouTube, archive or legacy workflow requires it. For new projects, SRT is usually more compatible.
Yes. SBV is a plain text format. Styling, colors, positioning and complex effects are not reliably preserved.
Yes. Use the SBV to SRT converter to turn SBV timecodes back into normal SRT blocks.
Yes, as long as the file is read correctly as text. The conversion runs locally in the browser and keeps the subtitle text.
No. The conversion happens completely locally in your web browser. Your SRT file is not sent to Subvideo.ai.