Free tool
SRT to SBV Converter
Convert SRT subtitles to SBV (.sbv) — YouTube's caption format — right in your browser, with timestamps preserved exactly. No signup, no watermark.
100% in your browser — your files never leave your device.
How to convert SRT to SBV
- Step 1
Add your subtitles
Paste your SRT content into the box, or upload the .srt file.
- Step 2
Convert to SBV
Click Convert — you get a YouTube-ready .sbv with cue numbers dropped and the timing preserved.
- Step 3
Copy or download
Copy the result or upload the .sbv in YouTube Studio.
Example: SRT → SBV
Here's the same cues before and after conversion, so you know exactly what you'll get.
1 00:00:01,000 --> 00:00:03,500 Hello — welcome to the show. 2 00:00:04,000 --> 00:00:06,200 Today we have a special guest.
0:00:01.000,0:00:03.500 Hello — welcome to the show. 0:00:04.000,0:00:06.200 Today we have a special guest.
The formats explained
What is SRT? (SubRip)
The most widely supported subtitle format. Plain text with numbered cues and HH:MM:SS,mmm timecodes — it works in almost every video player, editor, and uploads straight to YouTube.
What is SBV? (SubViewer / YouTube)
The caption format YouTube Studio exports and imports. Plain text with H:MM:SS.mmm timecodes separated by a comma and no cue numbers — simple, but not read by most desktop players or editors, which expect SRT.
Why convert SRT to SBV?
- SBV is the caption format YouTube Studio reads — if your subtitles are in SRT, convert them to .sbv to add them as captions on a video.
- SBV has no cue numbers and puts a comma between the start and end times; the converter handles that for you and leaves the timing untouched.
- You edited subtitles in a tool that exports SRT and now need them back on YouTube.
FAQ
How do I convert SRT to SBV for YouTube?
Paste or upload your SRT file and click Convert to SBV. Download the .sbv and upload it under YouTube Studio → Subtitles — the timing is preserved exactly.
What is an SBV file?
SBV (SubViewer) is YouTube's caption format: plain text with H:MM:SS.mmm timecodes separated by a comma and no cue numbers.
Does YouTube still accept SRT?
Yes — YouTube accepts SRT too, but SBV is its native export format, so a .sbv is guaranteed to import cleanly.
Are my files uploaded?
No — the conversion runs entirely in your browser; nothing is sent to a server.
Need to translate your subtitles too?
Converting is free here. When you need to translate subtitles into another language with the timeline kept perfectly aligned, that's what SubtitleFlow does.
Translate subtitles free