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MKV Compression Tool Online

Are you looking for a video compressor for your MKV files? With VEED’s online video compression tool, you can reduce the file size of your MKVs with minimal loss in image quality. VEED is a free audio and video compressor that is easy to use. You can compress your MKV files in a few clicks!

How to Compress MKV Files:

How to Compress MKV Files:
  1. Select and upload your MKV File

    Click on Choose MKV File. On the next page, you can either drag & drop your video into the box or choose your files from your library.

  2. Set your video compression settings

    You will be able to set your video’s resolution and quality. You can view the new estimated file size of your video before you click on Compress. VEED also has incredibly easy online video editing tools that allow you to add sound, text, or cut, trim, and rotate your videos before compressing them.

  3. Export your video

    Click on Export and your new compressed video will be saved to your device.

Choose MKV File

‘Compress MKV File’ Tutorial

Free MKV compressor online

Browser-based MKV compression tool. No need to download an app or software!

Need to attach videos to email? Reduce MKV file size 

Emails tend to have strict file size limits. Make sure you can send your video files as attachments by using our compression tool.

VEED - also a video converter

VEED also works as a media converter. Your MKV files will automatically be converted to MP4 format - make it compatible with VLC and other media players. 

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Frequently Asked Questions

How do I make an MKV file smaller?

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1. Select your MKV file and upload it to VEED

2. Adjust your compression settings

3. Export and save

4. Share

Why are MKV files so big?

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An MKV file is typically larger than an MP4 because it can contain multiple audio and subtitle tracks. You may notice that when you save a video as MKV, you will end up with a larger file size than when you save the same video as MP4. 

How do I convert from MKV to MP4?

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VEED automatically converts your MKV videos to MP4 format after compression. You can also convert your MKV files (without compressing them) by uploading to VEED and simply hitting the ‘Export’ button.

Will I lose image quality if I convert my MKV file to MP4?

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No. Converting an MKV file to MP4 will not result in loss in image quality. Both MKV and MP4 are ‘container’ formats which means they can ‘contain’ and play the same video and audio in the same resolution.

How can I send a large MKV file via email?

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Mail servers tend to limit the file attachments you can send between 20 and 25MB. It’s best to compress your MKV videos before sending them. 

Can I change bitrate, frames per second (FPS), resolution and CRF?

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If you’re looking for a more advanced set of options, and you wish to control CRF, bitrate, resolution and FPS, then simply click on ‘Advanced Settings’. In this menu you will be able to adjust the video compression options to your exact specifications. Under ‘Resolution’ you will be able to choose from 480p, 720p, 1080p, 4k and more.

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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