Batch convert files to SMI online.
Large files from any format are supported.

Max size: 200 MB per file

You can convert to SMI Learn more about SMI from

Document/Office
Document/Office
Subtitles
Subtitles


What is SMI?

Extension smi
Alternative extension sami
Category Subtitles file formats
Developed by Microsoft
Mime type -

Description

SAMI is short for Synchronized Accessible Media Interchange. Developed in the late 90s by Microsoft, SMI or SAMI files were an accessibility initiative by the company. Such files contain subtitles with formatting, extended from HTML. In other words, subtitle text in the SAMI format can be bolded, italicized, underlined, colored, and more. SAMI files are used along with video files as closed captions.

Common questions about converting to SMI

Can I convert to SMI in bulk?

Yes, MConverter supports batch converting to SMI. You can even drag and drop folders to convert to SMI.
Pasting files and folders copied in the clipboard also works: use Ctrl+V.

Can I convert a file to SMI, if its size is 1 GB?

Yes, with MConverter Premium you can convert big files, up to 1 gigabyte each.
The free version lets you convert files up to 200 MB. If you need to convert files over 200 megabytes to SMI, try MConverter Premium.

Is converting to SMI safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your files are only accessible by you. 24 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your files immediately after finishing the conversion by clicking the bin icon.
Join others who have trusted us to convert over 2,645,620 files so far.

How long does it take to convert a file to SMI?

For most files with subtitles, the wait is just one or two seconds. However, MConverter also supports converting larger files with subtitles, meaning that it could take a while (up to over an hour, for example).
Get it on Google Play Available on Samsung Galaxy Store Get it from Microsoft Store

Made with 💙 in 🇧🇬

My Account
Profile Picture
...
Free Edition
Action required
We need your attention to complete a payment.

Otherwise, your Premium benefits may stop working.

Downloads blocker detected
To stop seeing this message,
turn off Block automatic downloads
in Samsung Internet's Browsing pivacy dashboard settings.
To continue downloading your converted files, press the following button:
Download Files
Conversion History

To access files you have converted in the past during previous sessions,
you need to:

Legal Information
Options
Privacy Policy
Share with other apps

Fetching your file in order to share it with other apps...

Terms of Use
Upgrade

Upgrade to Premium

And get more features

Payments are processed by .
MConverter does not see your full credit card number.
Already purchased?

Verifying Your Premium

This may take a second...