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SMI to SRT converter

SAMI (.smi) is a subtitle format created by Microsoft for Windows Media and is still common for Korean subtitles. Convert it to SRT for modern players, TVs and editors.

Your subtitle file

Subtitle fileStays on your device

Drop subtitle files here

SRT, VTT, ASS, SBV, TTML, SUB, SMI, LRC and more · up to 100 files

Or paste subtitle text
No file at hand?

Your file is read by this page in your browser. It is not uploaded anywhere.

How to use it

  1. Open your SMI file

    Choose or drop the SMI file, or several at once. It is read by this page and never uploaded.

  2. Check the SRT preview

    SRT is already selected. Check the preview, or pick another format if you need one.

  3. Download the SRT file

    Download the converted file, or all of them as a ZIP when you opened several.

How SAMI timing becomes SRT

A SAMI file only marks when each line appears, with SYNC tags such as <SYNC Start=1000>, and an empty one clears the screen. The converter ends each caption when the next SYNC starts, which is how SAMI players show them; the very last caption lasts four seconds.

Languages and encoding

One SAMI file can hold several languages as classes such as KRCC and ENCC. The converter uses the first language in the file. Older SMI files are often saved in a regional encoding; if letters look wrong, choose the matching option under Text encoding, for example Korean (EUC-KR).

Questions and answers

My SMI file has Korean and English. Can I get the English?

Not directly yet. The converter uses the first language class in the file, so remove the other language’s paragraphs in a text editor first.

Why does my SMI file show broken characters?

It was saved in a regional encoding. Choose the matching option under Text encoding and the preview updates at once; the SRT file is saved as UTF-8.

Can I convert SRT to SMI?

Yes. Choose SMI (SAMI) as the output format in the converter.

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