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SBV to SRT Converter

Convert YouTube SubViewer (.sbv) captions to SRT — free, instant, 100% private

Files stay private — processed 100% in your browser, never uploaded to any server.
Input
Output

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How to Convert Subtitle Files

Four steps to convert any subtitle or transcript format — no software, no upload, no account.

Step 1

Paste or drop your SBV file

Copy the content of your .sbv file — commonly downloaded from YouTube Studio's caption editor — and paste it into the input area, or drag and drop the file directly.

Step 2

Conversion happens automatically

The tool detects the SubViewer comma-separated timestamp format, parses each block's start and end time and caption text, converts [br] markers to spaces, and adds sequential SRT numbering.

Step 3

Optionally adjust timestamps

Use the offset field to shift all cues forward or backward by a fixed number of seconds to correct any sync drift.

Step 4

Download the SRT file

Click Download to save the converted .srt file, or copy the output to your clipboard. Drop it directly into Premiere, DaVinci Resolve, VLC, or any SRT-compatible player.

Why Use This Converter

  • Convert SBV to SRT in one click — no software to install
  • Handles multi-line SubViewer captions and the [br] line-break marker
  • Timestamp offset sync — shift cues forward or backward
  • 100% client-side — your SBV files are never uploaded
  • Output is a valid SRT file compatible with all major video editors
  • No file size limits, no watermarks, no account required

Frequently Asked Questions

Paste your .sbv file content into the input area above (or drag and drop the file). The tool auto-detects the SubViewer format from its comma-separated timestamp lines and converts it to SRT instantly. Click Download to save the .srt file.

SBV (SubViewer) is a simple caption format historically offered as a download option in YouTube's caption editor, alongside SRT and VTT. Each caption block starts with a "start,end" timestamp line in H:MM:SS.mmm form, followed by the caption text, with blocks separated by a blank line.

SRT is far more widely supported than SBV — nearly every video editor (Premiere, DaVinci Resolve, Final Cut), media player (VLC, Windows Media Player), and platform accepts SRT, while SBV support is limited mostly to YouTube's own tools and a handful of older applications.

The SubViewer format uses [br] to represent a manual line break within a single caption block. This converter replaces every [br] with a space so the SRT output reads as one clean line — SRT players wrap text automatically based on player width.

Yes, completely free. There is no account, no sign-up, and no usage limit.

No. All conversion happens in your browser. Your SBV files are never sent to any server, never stored, and never leave your device.

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