SRT to SUB Converter • Online & Free • MConverter

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

Drop Tap to Choose SRT Files Here

Or Browse

Paste files with Ctrl+V

To select multiple, hold and drag on the file icons

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How to convert SRT to SUB?

You can convert SRT to SUB with MConverter in three easy steps:

Choose SRT files from your device or cloud storage
At the top of this page, drag and drop your SRTs.

Alternatively, click on the Browse box to select files with your device's file picker, or copy and paste an SRT file by pressing Ctrl+V (or ⌘+V on Mac).

MConverter can easily import SRTs from Google Drive, OneDrive, and Dropbox.

Converting a folder with SRT files to SUB is also supported: simply paste, drag and drop it, or use the ADD FOLDER button.
Click or tap on SUB from the list of target formats
You could also use the search box at the top right to quickly find the format you need, whether it's SUB or something else.
Get your SUB files after MConverter has finished processing them
Click on DOWNLOAD ALL to save your SUBs to your default downloads folder, or select SAVE TO to choose another location.

You can also configure automatic file downloads during the conversion process or in the settings menu. When enabled, each SUB file is downloaded as soon as its conversion is complete, without waiting for the others to finish.

If supported by your device, you'll see a Share icon, allowing you to directly send converted files to other apps.

About the formats

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

Format description

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.

File extension	.sub
Category	Subtitles file formats
Developed by	Tiamat Software
Mime type	text/x-microdvd

Format description

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 2 GB?

Yes, with MConverter Pro you can convert big SRTs, up to 2 gigabytes each.
The free version lets you convert files up to 100 MB. If you need to convert SRT files over 100 megabytes, try MConverter Pro. If your files aren’t over 1 GB, then you can use MConverter Plus instead, as it’s cheaper.

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 thousands who have trusted us to convert over 15,835,365 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).