What is the difference between SMI and SRT?
SMI (SAMI) is an XML-like Microsoft format with CSS styling and optional multi-language tracks. SRT is a plain-text format with just timestamps and text. SRT is far more compatible with modern players.
Convert SMI to SRT
Convert SMI (SAMI) subtitles to SRT online. SAMI, identified by the .smi extension, is a Microsoft-designed subtitle format that remains common in Korean media archives and some Samsung devices. It stores subtitles in an XML-like structure with CSS classes and optional multiple language tracks. This converter extracts the first subtitle track and outputs a clean, universally playable .srt file.
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Supported: ASS, SSA, SMI, SUB (MicroDVD), MPL2, VTT, SRT & ZIP - Max 100MB per file
About Converting SMI to SRT
What Is SAMI (SMI) Subtitle Format?
Synchronized Accessible Media Interchange (SAMI) was created by Microsoft for Windows Media Player. Files use the .smi or .sami extension and structure captions inside <SYNC> blocks with CSS-like styling. SAMI was popular in the early 2000s and remains in many Korean video archives. Most modern players have poor or no SAMI support, so converting SMI to SRT is the practical way to use those subtitles today.
What Happens During SMI to SRT Conversion?
The tool reads the SAMI XML structure, finds every <SYNC> timing entry, extracts the text from the selected language track, and rebuilds it as an SRT cue. Inline styles and CSS classes are discarded. If the file contains multiple language tracks, only the first track is converted. The result is clean SRT that plays anywhere.
Converting Korean SMI Subtitles
SMI is the default subtitle format for many Korean media downloads. If you have Korean dramas or films with .smi files and want to play them on a modern TV, phone or media server, conversion to SRT is essential. The tool handles legacy Korean encodings so Hangul text converts correctly, and never uploads your files.
Frequently Asked Questions
What is the difference between SMI and SRT?
SMI (SAMI) is an XML-like Microsoft format with CSS styling and optional multi-language tracks. SRT is a plain-text format with just timestamps and text. SRT is far more compatible with modern players.
Will all language tracks be converted?
The tool extracts the first subtitle track found in the SAMI file. If you need a specific track, remove the others from the file before converting.
Does this handle Korean SMI files correctly?
Yes. The converter detects and handles legacy Korean text encodings so Hangul subtitles convert to SRT without mojibake.
Why won't my player show SMI subtitles?
SAMI support is poor on modern players, smart TVs and streaming apps. Converting to SRT gives you universal compatibility.
Are my SMI files uploaded anywhere?
No. Conversion happens locally in your browser. Your files never leave your device.
Convert Other Subtitle Formats to SRT
How to use this tool
Convert SMI (SAMI) subtitles to SRT when a player or media library needs a simpler, broadly supported text format.
Supported input or output formats for this workflow are .smi input and SRT output. The exact controls on the page determine which options apply.
What Is SAMI (SMI) Subtitle Format?
Synchronized Accessible Media Interchange (SAMI) was created by Microsoft for Windows Media Player. Files use the .smi or .sami extension and structure captions inside <SYNC> blocks with CSS-like styling. SAMI was popular in the early 2000s and remains in many Korean video archives. Most modern players have poor or no SAMI support, so converting SMI to SRT is the practical way to use those subtitles today.
What Happens During SMI to SRT Conversion?
The tool reads the SAMI XML structure, finds every <SYNC> timing entry, extracts the text from the selected language track, and rebuilds it as an SRT cue. Inline styles and CSS classes are discarded. If the file contains multiple language tracks, only the first track is converted. The result is clean SRT that plays anywhere.
Converting Korean SMI Subtitles
SMI is the default subtitle format for many Korean media downloads. If you have Korean dramas or films with .smi files and want to play them on a modern TV, phone or media server, conversion to SRT is essential. The tool handles legacy Korean encodings so Hangul text converts correctly, and never uploads your files.
Format-specific behavior
SAMI files can contain styling and multiple language tracks. This route extracts the first track described by the converter behavior.
Troubleshooting the output
If the wrong language appears, edit or separate the SAMI tracks before converting.
More Questions About This Tool
Will all language tracks be converted?
The tool extracts the first subtitle track found in the SAMI file. If you need a specific track, remove the others from the file before converting.
Does this handle Korean SMI files correctly?
Yes. The converter detects and handles legacy Korean text encodings so Hangul subtitles convert to SRT without mojibake.
Why won't my player show SMI subtitles?
SAMI support is poor on modern players, smart TVs and streaming apps. Converting to SRT gives you universal compatibility.
Are my SMI files uploaded anywhere?
No. Conversion happens locally in your browser. Your files never leave your device.
What is the easiest way to convert SMI subtitles to SRT?
Open this tool, select the relevant file, choose the available SMI to SRT converter options, and download the generated result. The page keeps the workflow in the browser rather than requiring an installed editor.
Which files work with this SMI to SRT converter?
Use the formats listed in the tool description and picker. .smi input and SRT output Formats outside that list may be rejected or need conversion first.
Are subtitle files uploaded during processing?
The tool is built for browser-side processing. Your file is selected by the browser and the result is downloaded locally rather than being described as a server upload.
Will the video file be changed?
No. Subtitle tools create or modify subtitle output only. The video itself is not edited, re-encoded, or downloaded by this workflow.
How do I check whether the output worked?
Open the downloaded file with a text editor or your video player. Confirm that cues are present, timestamps make sense, and the filename matches the video when automatic loading is useful.
Next Steps for Your Converted SMI Subtitles
Before archiving the SRT, play it against the first and last ten minutes of your video. If every cue is off by the same amount, or the gap widens over time, send the file through our subtitle sync tool to fix the offset or rescale the timeline — conversion preserves timestamps, so any mismatch was already in the source or comes from a frame-rate assumption.
To understand what the conversion kept and dropped, compare the formats in SRT vs VTT vs ASS subtitle formats, then follow how to add subtitles to a video for loading the SRT in your player of choice. Missing a track for a particular film? Browse movie subtitles to find it, or convert the result to plain text when you need a quotable transcript instead of timed cues.
Convert SMI to SRT in three steps
- Select your SMI file: Choose the .smi subtitle file, or upload multiple files or a ZIP archive.
- Convert to SRT: Click Convert to SRT. The tool reads the SAMI structure and outputs clean SRT.
- Download the SRT: Save the .srt file and use it with any video player.