Add Subtitles or SRT to MKV

Extra Options

Be flexible and create captions the way you like: add an SRT file, create subtitles manually, or generate them automatically.

Customize Subtitles

Change the font and color of the captions, increase their size, and adjust the background color for better comprehension.

Add Subtitles Online

Our service works in a browser on almost any device, so you do not need any software to merge SRT with MKV or any other video.

Add SRT to MKV

MKV, short for Matroska Multimedia Container, is a popular format for storing video and audio. What sets MKV apart is its ability to contain unlimited video, audio tracks, and subtitles within a single file, making it an excellent choice for films and video presentations.

Subtitles enhance the accessibility of MKV videos, allowing viewers to watch content in public spaces or situations where audio isn’t an option. The MKV format isn’t universally supported across all tools and platforms, particularly free ones, which can make adding SRT subtitles to MKV files a bit tricky. Thankfully, our service simplifies this process.

You can easily hardcode subtitles into MKV files by creating them from scratch, uploading an SRT file, or generating captions automatically from the video. Additionally, our tool functions as a file converter, supporting popular social media formats like MP4 and MOV, along with many others. Moreover, you can easily translate the captions into another language and download the subtitles as an SRT or regular text file.

How to add subtitles to MKV

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Step

Upload your file

You can select recordings from your device or use videos in your cloud storage. For the first option, hit the blue button "Choose file". For the second, call a drop-down menu on the right of the pane. Select a clip saved to your cloud storage.

Step

Merge SRT with MKV

As soon as the video is uploaded, you can upload an SRT file to merge subtitles with MKV automatically or add captions manually. In the editor, you can add, delete, and edit subtitles as you wish. Change the way the subtitles look in the "Styles" tab. When you are happy with the result, click "Export".

Step

Save the result

The tool will add hard subtitles as an overlay over your video that cannot be turned off or on later in a player. Have a quick preview and make sure that you got what you needed. Save the video with embedded subtitles to your device or cloud storage account. If changes are needed, click "Edit".

Frequently Asked Questions

FAQ

Is there a way to edit SRT subtitles I made for my MKV video?

Yes! Just upload your MKV file and subtitles, adjust timing and content, and save your updated SRT.

Which subtitle format works with the Add Subtitles to MKV tool?

You’ll need an SRT file, as it’s a standard subtitle format. You can also create subtitles manually or automatically using our tool.

Is there a way to edit the text styling of subtitles?

Yes, the tool provides options to adjust font types, subtitle colors, and sizing so your captions look the way you need them.

Can I use either soft or hardcoded subtitles in an MKV file?

With the Add Subtitles to MKV tools, you'll get hardcoded subtitles that are permanently part of your video; viewers won't be able to switch them on/off.

Is it possible to save my MKV subtitling progress and return to the project later?

Yes! Premium members can export and save their projects. Unregistered users should complete their subtitling in a single session.

Why can't I add my SRT file to the Add Subtitles to MKV tool?

Your file might contain formatting errors — use the standard 00:00:00,000 format, check numbering, and ensure blank lines are included.

Are Spanish subtitles available in the tool?

Yes, the tool allows you to create and translate subtitles into any language you choose.

When adding subtitles, what's the character limit per line?

To ensure optimal viewing on all devices, limit each subtitle line to 42 characters and cap it at 2 lines per screen.

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