Convert Subtitles for YouTube (SBV)
Convert SRT or VTT captions to YouTube's SBV format.
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SRT, VTT, SBV, LRC, ASS, SSA, TXT 无文件大小限制
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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
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.
工作原理
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