Convert Subtitles for YouTube (SBV)

Convert SRT or VTT captions to YouTube's SBV format.

No login requiredFiles stay private

Drop files here, or click to browse

SRT, VTT, SBV, LRC, ASS, SSA, TXT no file size limit

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Subtitle text

Output

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💡 Converts between SRT, WebVTT, SBV (YouTube), LRC (lyrics), and ASS/SSA, preserving timing. The input format is detected automatically. Everything runs in your browser — your captions are never uploaded.

YouTube tips

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YouTube's classic caption format is SBV — convert your SRT/VTT to upload it directly.

⏱️

Timing carries over precisely so captions stay in sync.

📤

YouTube also accepts SRT now, but SBV remains handy for some workflows and tools.

🔒

Your captions never leave your device.

How It Works

Choose File

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Process

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Download

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Why use ours?

✓Completely free — no hidden costs, ever

✓No account, email, or login required

✓Files never leave your device

✓No file size limits whatsoever

✓No watermarks on any output

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Frequently Asked Questions

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