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ChangeMyFile

Free MKV to AVI Converter Online

Fast, Free, Secure & Simple

Looking to convert MKV to AVI online for free? You’ve come to the right place. Change My File is the best MKV to AVI converter that helps you convert MKV files to AVI format quickly and easily — all without installing any software. Just upload your MKV file, hit convert, and download your AVI in seconds!

Why Use Change My File to Convert MKV to AVI?

Our tool is designed to offer the fastest and most secure MKV to AVI conversion online. Whether you're editing videos or looking for better compatibility on devices like TVs, tablets, or older media players, AVI format is widely supported and perfect for playback.

100% Free & Easy to Use

Convert MKV files to AVI for free with no sign-ups or watermarks.

Fast MKV to AVI Conversion Online

Enjoy lightning-fast conversions with just a few clicks.

Safe & Secure File Converter

We respect your privacy — your uploaded files are never stored.

Compatible with All Devices

Our online converter works perfectly on desktops, laptops, and mobile phones.

How to Convert MKV to AVI Free Online?

Using our online MKV to AVI converter is simple:

  1. Upload your MKV file by dragging and dropping it or using the upload button.
  2. Click “Convert” – our tool processes your video quickly.
  3. Download your AVI file and enjoy high-quality playback.

There’s no need for complex software or technical skills.

What is MKV and Why Convert It to AVI?

MKV (Matroska Video) is a flexible video format but isn’t always compatible with older devices or editing software. AVI (Audio Video Interleave), on the other hand, is supported by a wide range of devices, media players, and platforms.

By using our free MKV to AVI converter online, you ensure better compatibility and smoother playback, especially if you plan to burn videos to DVD or use them in legacy systems.

Frequently Asked Questions

Is this MKV to AVI converter really free?

Yes! Change My File is completely free and doesn't limit usage.

Do I need to install any software?

No installation required. Our MKV converter works directly in your browser.

Can I convert large MKV files?

Yes, our system supports large video files — performance may vary based on file size and internet speed.

Convert MKV to AVI Online for Free Now

Don’t waste time with slow, clunky software. Convert MKV to AVI online free with Change My File — the fastest, safest, and most user-friendly MKV video converter on the web. Upload your MKV file today and see the difference!

MKV Technical Specifications

File extension.mkv
File categoryVideo
Stands forMatroska Multimedia Container
DeveloperSteve Lhomme
OverviewAn unlimited amount of data such as an infinite number of audios, videos, pictures, arbitrary files like XML and subtitle tracks can be stored in MKV files. Although, it has a similar concept that of AVI, MP4; etc., yet, there is one difference. It is an open-source software or has open specifications, whereas, others are different. Furthermore, it allows online streaming and fast seeking which are alluring features. It can be used with ease as it is highly adaptive and can accept any audio and video.
Technical descriptionFiles in MKV format store each track in varied dataline. Files in this format use distinctive extensions for storing the data. The extension .MKV is used only for video files(may have subtitles and audio),.MK3D for stereoscopic video, .MKA and .MKS for audio and subtitles respectively. The codecs that are linked to this format are .SRT, Vobsub, .USF(Universal Subtitle Format) and .SSA; etc. It should be noted that not all the media players support this file format but only selective ones like VLC. Besides this, ‘Matroska' is derived from a Russian word that is ‘Matryoshka’ and it refers to a hollow Russian doll which opens to uncover another doll, this doll then again opens to reveal next doll and the process goes on. Other meanings for this word in Russia are a sailor suit and a female sailor. Technical details in depth are available only for private and commercial use.
Links

AVI Technical Specifications

File extension.avi
File categoryVideo
Stands forAudio Video Interleave
DeveloperMicrosoft
OverviewThis file format stores both audio and video files for playback purposes. It is used to store files that are of high quality as file compression is less in this extension. Windows OS uses this as the default format to store multimedia files but other operating systems such as Linux, Unix and Mac also support this. The data in it is encoded by various codecs such as DivX and XviD. There is a variety of software that support these files. For instance- Microsoft Movies & TV, Windows Media Player and Apple QuickTime player; etc. Due to its low compression ability, it is widely used to make short movies, promos and advertisements; etc. It should be noted that AVI format result in large files that is why it is rarely used for video streaming.
Technical descriptionIn AVI extension, file's data is divided into blocks or chunks as it is a sub-format of RIFF(Resource Interchange file format). An identification of each chunk is done by FourCC tag. File header and metadata of video(like height, width and frame rate) are identified by ‘hdrl tag' which is sub-chunk and it is mandatory. There is one another chunk which is also obligatory that is ‘movi tag' and it has actual audio or video data. The last sub-chunk is ‘idx1 tag' and it records the offsets of the data chunks. This ‘idx1 tag' is completely optional. There is one limitation of this format that it does not contain variable bitrate data.
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MKV To Other Extensions