MKV Converter

Convert video to MKV online with a free MKV converter.
Drop your video files below to convert them to MKV in seconds.

Or drag your images here

Looking to programmatically convert video to MKV?

Sign up for our free API to convert all your videos to MKV and other formats for optimal web delivery.

Free MKV Converter

Easily convert video to MKV online instantly and effortlessly. No installation or plugins required. Simply drop your video into our converter and receive a MKV file in seconds with high-quality playback.

Why choose our MKV converter?

Domain Specific AI

AI-Powered Video Transformations

Go beyond simple conversions. Transform your videos with features like Generative Fill, Object Removal, and Scene Replacement, adding flexibility and creativity to your video content.

Domain Specific AI

Video Enhancement

Enhance video quality with tools for 4K resolution, real-time filtering, and frame rate adjustment. With Cloudinary’s API, your videos look stunning and ready for any screen.

Domain Specific AI

Performance Optimization

Deliver videos in the best quality and format, adapting automatically to the user’s device, browser, and network. Automatically apply the most efficient format for seamless playback.

Domain Specific AI

Batch Convert videos to MKV

Use the converter to batch convert videos to MKV, or sign up for the free API to automatically convert all your videos to MKV!

Domain Specific AI

Workflow Automation

Create workflows that automate video processing, ensuring videos are formatted and ready for fast delivery right after upload.

Domain Specific AI

Versatile Video Format Support

Handle all major video formats: MOV, MP4, AV1, WEBM, HEVC, and more. Ensure your videos are delivered in the best format for quality and efficiency.

How to Convert videos to MKV

Convert videos to MKV in 3 simple steps, or sign up with Cloudinary to programmatically transform thousands of videos!

1. Add Your video Files

Upload or drag and drop your video files into the browser.

2. Start Conversion

Select MKV as your output format to begin the conversion

3. Download MKV Videos

Once the conversion is complete, download your new MKV files

Or sign up for an API

GET FREE API

Explore Beyond MKV Conversion

A woman and a golden retriever in the mountains. They're sitting, facing away from the camera while the dog noses the woman. They're surrounded by natural splendor including majestic mountains, puffy clouds, and evergreen-studded hills. — An un-cropped image overlaid with a cropping window showing how it would be cropped by Cloudinary.

Original: 18 MB
We’re showing a resized version of the original asset to avoid slow loading speeds. View the original.

JPEG: 135 KB
WebP: 135 KB
AVIF: 90 KB
JPEG XL: 94 KB

Original: 18 MB
We’re showing a resized version of the original asset to avoid slow loading speeds. View the original.

JPEG: 135 KB
WebP: 135 KB
AVIF: 90 KB
JPEG XL: 94 KB

Duration: 1:42

Duration: 0:15

URL:

/ar_0.5,c_fill,g_auto,w_433/q_auto/f_auto/hiking_dog_mountain.jpg

cloudinary.image("hiking_dog_mountain.jpg", {transformation: [
  {aspect_ratio: "0.5", gravity: "auto", width: 433, crop: "fill"},
  {quality: "auto"},
  {fetch_format: "auto"}
  ]})

new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));

new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));

new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));

new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));

CloudinaryImage("hiking_dog_mountain.jpg").image(transformation=[
  {'aspect_ratio': "0.5", 'gravity': "auto", 'width': 433, 'crop': "fill"},
  {'quality': "auto"},
  {'fetch_format': "auto"}
  ])

(new ImageTag('hiking_dog_mountain.jpg'))
	->resize(Resize::fill()->width(433)
->aspectRatio(0.5)
	->gravity(
	Gravity::autoGravity())
	)
	->delivery(Delivery::quality(
	Quality::auto()))
	->delivery(Delivery::format(
	Format::auto()));

cloudinary.url().transformation(new Transformation()
  .aspectRatio("0.5").gravity("auto").width(433).crop("fill").chain()
  .quality("auto").chain()
  .fetchFormat("auto")).imageTag("hiking_dog_mountain.jpg");

cl_image_tag("hiking_dog_mountain.jpg", transformation: [
  {aspect_ratio: "0.5", gravity: "auto", width: 433, crop: "fill"},
  {quality: "auto"},
  {fetch_format: "auto"}
  ])

cloudinary.Api.UrlImgUp.Transform(new Transformation()
  .AspectRatio("0.5").Gravity("auto").Width(433).Crop("fill").Chain()
  .Quality("auto").Chain()
  .FetchFormat("auto")).BuildImageTag("hiking_dog_mountain.jpg")

cloudinary.image('hiking_dog_mountain.jpg').transformation(Transformation()
	.resize(Resize.fill().width(433)
.aspectRatio(0.5)
	.gravity(
	Gravity.autoGravity())
	)
	.delivery(Delivery.quality(
	Quality.auto()))
	.delivery(Delivery.format(
	Format.auto())));

imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation()
  .setAspectRatio("0.5").setGravity("auto").setWidth(433).setCrop("fill").chain()
  .setQuality("auto").chain()
  .setFetchFormat("auto")).generate("hiking_dog_mountain.jpg")!, cloudinary: cloudinary)

MediaManager.get().url().transformation(new Transformation()
  .aspectRatio("0.5").gravity("auto").width(433).crop("fill").chain()
  .quality("auto").chain()
  .fetchFormat("auto")).generate("hiking_dog_mountain.jpg");

cloudinary.image('hiking_dog_mountain.jpg').transformation(Transformation()
	.resize(Resize.fill().width(433)
.aspectRatio(0.5)
	.gravity(
	Gravity.autoGravity())
	)
	.delivery(Delivery.quality(
	Quality.auto()))
	.delivery(Delivery.format(
	Format.auto())));

cloudinary.image {
	publicId("hiking_dog_mountain.jpg")
	 resize(Resize.fill() { width(433)
 aspectRatio(0.5F)
	 gravity(
	Gravity.autoGravity())
	 })
	 delivery(Delivery.quality(
	Quality.auto()))
	 delivery(Delivery.format(
	Format.auto())) 
}.generate()

new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));

Frequently Asked Questions

Get Answers to Your Questions About Our Chat Software and Features

What is MKV?

MKV, or Matroska Video, is a popular multimedia container format that can store video, audio, subtitles, and metadata within a single file. It is open-source and highly versatile, supporting a wide range of codecs, which makes it a preferred choice for video enthusiasts and professionals alike. Unlike other container formats like MP4 or AVI, MKV is designed for flexibility and future-proofing, allowing users to include multiple audio tracks, subtitle streams, or chapters without compromising quality. This adaptability makes it an excellent format for high-definition content, such as movies or series, where multiple languages or subtitle options are needed.

One of the key features of MKV is its robust error recovery, which ensures that a corrupted file can often still be played. It is widely supported across various platforms and media players, including VLC, Plex, and Kodi. Despite its extensive capabilities, MKV files are relatively easy to create and manage, thanks to tools like HandBrake and MKVToolNix. However, its flexibility can come at the cost of larger file sizes compared to other formats, depending on the compression and codec used. Overall, MKV stands out as a comprehensive and reliable solution for modern multimedia needs.

What are benefits of MKV video format?

The MKV video format offers numerous benefits, primarily its ability to store multiple streams of content within a single file. This includes support for multiple audio tracks, subtitles in various languages, and even chapter markers, making it ideal for movies, TV series, and other multimedia content requiring flexibility. Users can switch between these tracks or subtitles without needing separate files, which streamlines the playback experience. Furthermore, MKV is codec-agnostic, meaning it can contain video and audio compressed with different codecs like H.264, H.265, or VP9, giving creators and users the freedom to choose the best compression for their needs.

Another significant advantage of MKV is its robustness and error resilience. If an MKV file becomes partially corrupted, its design often allows the remaining content to play without interruption, which is a critical feature for long-term storage or downloading files over unstable connections. Additionally, its open-source nature ensures widespread compatibility across platforms and media players like VLC, Kodi, and Plex, while also enabling continual updates and improvements from the community. These benefits, combined with its support for high-quality content like 4K or HDR videos, make MKV a preferred choice for professionals and enthusiasts seeking a versatile and reliable video format.

How to Batch Convert videos to MKV?

1. Select video File

Gather all the videos you wish to convert and upload or drag and drop them into a batch conversion tool like Cloudinary.

2. Choose MKV as Output Format

In the converter, select MKV as the output format for your videos.

3. Start the Conversion

Begin the batch conversion process. The tool will automatically convert all selected videos to MKV.

4. Download Converted Videos

Once the batch conversion is complete, download the converted MKV files directly to your device.

To streamline the process, sign up for Cloudinary’s API to automate video conversions and easily transform any format into MKV or other video formats.