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Convert SAMI to VTT

Convert legacy SAMI (.smi) captions to WebVTT (.vtt) for the browser.

Drop a subtitle file hereor click to choose · .srt .vtt .ass .ssa .sbv .lrc .smi .sub
…or paste subtitle text

🔒 Runs entirely in your browser. Your file is never uploaded.

About this conversion

SAMI (`.smi`) is an old Microsoft caption format browsers never supported. Converting to WebVTT makes those captions web-playable: each `<SYNC Start=…>` becomes a timed cue, the HTML-style markup is stripped, the blank clearing syncs are dropped, and because SAMI files are frequently Shift-JIS or EUC-KR the encoding is detected so CJK text survives the round-trip.

Everything runs locally in your browser — the file is never uploaded.

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