Convert from SUB to other formats in bulk.
Large SUB files are supported.

Max size: 200 MB per file

You can convert SUB Learn more about SUB files to


What is SUB?

Extension sub
Category Subtitles file formats
Developed by Tiamat Software
Mime type -


MicroDVD Subtitle files (SUB) contain subtitle text, start and end time points. SUB files are meant to be used together with the corresponding video the subtitles are for. MicroDVD Subtitle do not support text formatting.
Note: SUB files do not contain a video stream inside.

Common questions about SUB conversions

How to open a SUB file?

If you don't know how to view a SUB file, you can convert it to another format you already recognize. You can use MConverter for the conversion.

Can I convert SUB files in bulk?

Yes, MConverter supports batch converting of multiple SUB files at once. You can even drag and drop folders containing SUBs.
Pasting SUB files and folders copied in the clipboard also works: use Ctrl+V.

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

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

Is converting SUBs safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your SUB 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 SUBs and other converted files immediately after finishing the conversion by clicking the bin icon.
Join others who have trusted us to convert over 2,164,743 files so far.

How long does it take to convert SUB?

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 🇧🇬 Bulgaria

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,
go to Samsung Internet > Settings > Privacy and security, and turn off Block automatic downloads.
To continue downloading your converted files, press the following button:
Download Files

Your conversion has produced multiple files. This happens when, for example, a video or a PDF is converted to an image format.
You can choose whether to download the individual video frames or document pages, or download everything in a ZIP.

Thank You

You Have a Gift!

Since you've previously supported the development of MConverter and we're extremely thankful for that, we're giving you 1 year of MConverter Premium for free.

To claim your reward, send us an email with the date of your donation to If you prefer, you can send a screenshot of your donation instead.

Legal Information
Privacy Policy
Share with other apps

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

Terms of Use

Upgrade to Premium

And get more features

Payments are processed by .
MConverter does not see your debit/credit card info.
Already purchased?

Verifying Your Purchase

Please wait a few seconds...