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Merge MKV Files Online, Free

Do you have multiple MKV files that you want to merge into one? You can use VEED’s free video joiner. Upload as many video files as you want and use our video editor to cut, trim, split, rearrange them and join them together. 

Our video merger is free and online. Edit and merge your videos straight from your browser. VEED is also a video converter - export your merged MKV videos as one MP4 file. Make it compatible with all media players.

How to Merge MKV Files:

How to Merge MKV Files:
  1. Choose your MKV files

    Upload two or more MKV videos into the editor by clicking on ‘Choose MKV Files’. Select multiple videos by pressing the Shift key (Command for Mac) while clicking on multiple files. You can also drag and drop your videos from your folder to the editor window.

  2. Merge your videos

    You will see all your videos in the editing pane. You have the option to edit each of them. Split and rearrange your video clips however you like. Or you can add more videos by clicking on the plus (+) icon on the lower right of the screen.

  3. Export your new video

    Click on ‘Export’. Your merged videos will be exported as one MP4 file.

Choose MKV Files

‘MKV Joiner’ Tutorial

Free online MKV joiner

Our online MKV video joiner is free and accessible from any device and any browser. VEED works smoothly on Windows, Mac, Linux, Android, iPhone, and all mobile devices. No need to pay for expensive services like Wondershare Uniconverter.

Video splitter and editor

If you want to split your videos before combining them, all you have to do is move the indicator on the storyboard/editing pane, right-click on it, and select ‘Split’. You can then delete the clip or move it around the timeline. Edit each clip as you wish using the video editor.

Join new videos from your webcam

You can also add new videos that you can record from your webcam. Click the plus (+) icon on the bottom-right of the screen or select Upload from the left menu. Choose Record then start recording!

Convert your MKV files to MP4

Your videos will be exported as one MP4 video file. Make your file smaller and compatible with all media players.

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Frequently Asked Questions

How do I join MKV files together?

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1. Choose your MKV files and upload them to VEED 

2. Merge your videos or edit your clips in the editor

3. Export and share

How can I reduce the size of MKV files?

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Your file size will depend on the compression settings you select before exporting your video. You can choose to export it in a slightly lower quality to make the file smaller. Since VEED will convert your MKV files to MP4, the final merged file will also be automatically smaller than the original.

How do I combine MP4 and MKV?

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You can upload multiple video files in different formats to merge—including MP4 files. The final file will always be in MP4 format.

What is an MKV file?

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MKV stands for Matroska Video—which was first developed in Russia in 2002. It was designed to be a multimedia container that can include audio, subtitles, videos, images, etc. However, not all media players support the MKV format. It is still best to convert your videos to MP4 to make them more universally compatible.

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How much does it cost?

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It’s free! No more need for expensive editing software, no more need for downloading software like vlc media player - VEED is totally free and lets you edit video right in your browser. There’s never been an easier way to join your video files online. And it’s totally FREE!

More than an MKV joiner

VEED lets you do so much more than just combine or merge your MKV files. Apart from trimming, splitting, and combining video clips, you can also add texts, images, subtitles, and do so much more with your videos. You can crop, rotate, and resize your videos to fit different video-sharing and social media platforms. Our tools are all online. Do them all from your browser!

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Veed.io on different devices
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Quotation Mark - What they say about VEED

What they say
about VEED

Veed is a great piece of browser software with the best team I've ever seen.

Veed allows for subtitling, editing, effect/text encoding, and many more advanced features that other editors just can't compete with. The free version is wonderful, but the Pro version is beyond perfect. Keep in mind that this a browser editor we're talking about and the level of quality that Veed allows is stunning and a complete game changer at worst.


Chris Y.

I love using VEED as the speech to subtitles transcription is the most accurate I've seen on the market.

It has enabled me to edit my videos in just a few minutes and bring my video content to the next level

Laura Haleydt - Brand Marketing Manager, Carlsberg Importers

The Best & Most Easy to Use Simple Video Editing Software!

I had tried tons of other online editors on the market and been disappointed. With VEED I haven't experienced any issues with the videos I create on there.

It has everything I need in one place such as the progress bar for my 1-minute clips, auto transcriptions for all my video content, and custom fonts for consistency in my visual branding.

Diana B - Social Media Strategist, Self Employed

Video Editing Features

More than just an online Video Trimmer
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