Convert SRT to SUB in bulk.
Large SRT files are supported.

You can convert SRT Learn more about SRT files to


How to convert SRT to SUB?

You can convert SRT to SUB with MConverter in three easy steps:
  1. Choose SRT files from your device
    At the top of this page, drag and drop your SRTs.
    You can also click to select SRT files using your operating system's file picker.
    Another method is to press the keyboard shortcut Ctrl+V (⌘+V on Mac) to paste an SRT file you have copied to clipboard.
    Converting a folder with SRT files to SUB is also supported: simply paste or drag and drop it.
  2. Click or tap on SUB from the list of target formats
    Alternatively, you can use the search field to quickly find the format you need, whether it's SUB or something else.
  3. Download your SUB files, after MConverter has finished processing them
    There's an option to automatically download the converted SUB files, so you don't have to press the download icon for each SUB.
    On desktop platforms, you can download the SUB files to a different folder by clicking on SAVE TO...
    You may see a share icon as well. Use it to directly share the SUBs with other apps.

About the formats

Extension srt
Category Subtitles file formats
Developed by Brain, Zuggy
Mime type application/x-subrip


Abbreviation for SubRip Subtitles. SRT files contain subtitles which can be played together with videos. An SRT file stores information about when each subtitle text should get displayed and then removed, along with a sequential index. Subtitles in the SRT format cannot have formatting, unlike some other subtitle formats, such as SMI (SAMI).
Note: SRT files themselves do not contain the video. They are only used in conjunction with a video.
Extension sub
Category Subtitles file formats
Developed by Tiamat Software
Mime type text/x-microdvd


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 converting SRT to SUB

Can I convert SRT to SUB in bulk?

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

Can I convert an SRT file to SUB, if its size is 1 GB?

Yes, with MConverter Premium you can convert big SRTs, up to 1 gigabyte each.
The free version lets you convert files up to 100 MB. If you need to convert SRT files over 100 megabytes, try MConverter Premium.

Is converting SRTs to SUB safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your SRT files are only accessible by you. 4 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your SRTs and other converted files immediately after finishing the conversion by clicking the bin icon.
Join others who have trusted us to convert over 5,262,124 files so far.

How long does it take to convert SRT to 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).

SRT to SUB Converter Rating

310 votes

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Dec 6, 2021
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