Is converting SMI to SRT free?
Yes. This tool is completely free and has no usage limits, watermarks or sign-up requirements.
Free SMI subtitle converter
Convert SMI to SRT
Convert SMI subtitles to SRT format for free, right in your browser. Upload a .smi file and the converted SRT subtitles appear instantly in an editable preview. Make any changes you need, then download the finished file — no uploads, no accounts, no watermarks.
What is SMI to SRT conversion?
Subtitles are stored in many formats, and not every video player or editing app reads them all. SAMI (SMI) and SubRip (SRT) are two common subtitle formats with different structures. This converter parses your .smi file, keeps the timing and text of every caption, and rewrites the content as a valid .srt file. The whole conversion runs locally in your browser, so your subtitle content stays private.
How it works
- 1Upload a .smi subtitle file or paste its text below.
- 2The converted SRT output appears in the editor, ready to review.
- 3Edit the captions, or switch the output format with the dropdown.
- 4Click Download to save your .srt file. No signup needed.
Why this tool
- 100% private. All conversion happens in your browser. Your subtitle file is never uploaded to a server.
- Free forever. No accounts, no watermarks, no file size limits. Convert as many subtitle files as you like.
- Editable output. The converted subtitles appear in an editor so you can fix wording or timing before downloading.
Frequently asked questions
Are my subtitle files uploaded to a server?
No. The conversion runs entirely in your browser, so your SMI file never leaves your device.
How do I convert SMI to SRT?
Upload or paste your .smi file, review and edit the converted SRT output, choose a format from the dropdown if you want a different one, then click Download.
Will the timing of my subtitles be preserved?
Yes. Every caption keeps its original start and end time during conversion, so the new SRT file plays in sync with your video.
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