SAMI → EBU-STL
Convert SAMI to EBU-STL
Free online SAMI to EBU-STL subtitle converter. Transform SAMI (.smi) files to EBU-STL (.stl) format instantly in your browser. No upload required.
Format Comparison
| SAMI | EBU-STL | |
|---|---|---|
| Full Name | SAMI | EBU-STL |
| Extension | .smi | .stl |
| Category | xml | broadcast |
| Key Features | Multi-language support, CSS styling, HTML-like syntax, Class-based language switching | Binary format, Broadcast-grade timing, Teletext compatibility, European standard |
| Common Uses | Windows Media Player, Microsoft platforms, Multi-language captioning | European broadcast, Teletext subtitles, TV station workflows, Broadcast delivery |
| Limitations | Windows-centric, Verbose syntax, Limited modern tool support | Binary format (not human-readable), Limited styling, Regional standard |
How to Convert SAMI to EBU-STL
- 1
Open the subtitle converter
Go to the Subtitle Tool and select your source SAMI file by pasting the text or uploading the .smi file.
- 2
Set your framerate
Choose the framerate that matches your video (e.g., 23.976, 25, 29.97). This ensures frame-accurate timestamp conversion.
- 3
Select EBU-STL as output format
Choose EBU-STL (.stl) from the output format dropdown.
- 4
Download your converted file
Click the download button to save your converted EBU-STL file. You can also copy the output text directly.
Frequently Asked Questions
How do I convert SAMI to EBU-STL?
Upload or paste your SAMI (.smi) file into the converter, select EBU-STL as the output format, and click Convert. The tool processes everything in your browser — no file uploads to a server.
What is the difference between SAMI and EBU-STL?
SAMI is sami (synchronized accessible media interchange) is a microsoft-developed caption format using html-like markup. EBU-STL is ebu-stl (european broadcasting union subtitle transfer language) is a binary broadcast subtitle format widely used in european television. They differ in features like multi-language support (SAMI) versus binary format (EBU-STL).
Is the SAMI to EBU-STL converter free?
Yes, completely free with no limits. The converter runs entirely in your browser using the timecodes library — no server processing, no sign-up, no watermarks.
Will I lose formatting when converting from SAMI to EBU-STL?
EBU-STL has some limitations: binary format (not human-readable). Timing accuracy is preserved using frame-based conversion through the timecodes library, but format-specific features like multi-language support and css styling may not carry over.