Convert AVI to MKV Online for Free

  1. Click Add Your Media and upload your AVI file.

  2. Make sure that the output format is set to MKV.

  3. Click Convert.

Popular converters:

4.7 (18,952 reviews)
Available translations: EN
Convert to

How to convert AVI to MKV using Movavi Converter

If you need to convert multiple files or your file is too large for the online converter, try the desktop alternative. The Movavi converter is a versatile audio, video, and image format changer. It deals with over 180 file formats, can convert files in bulk quickly, with high output quality and resolution. Its SuperSpeed mode gives you the fastest conversion speed and no quality loss. It has versions for both Windows PC and Mac and is really lightweight, allowing you to process photos, movies, and music files even on a weak computer.

How to convert AVI to MKV fast and easy? Read the guide below to find out!

Step 1. Download and install the Movavi converter

How to use a file converter? First, download the version of the software for Microsoft Windows or Macintosh, launch it, and proceed following the on-screen instructions. When the app is installed to your computer, it will run automatically.

Step 2. Add your AVI files

Locate the AVI files you want to convert and drag-and-drop them into the program’s window. The application can convert big batches of files – there’s no limit to how many files you can transfer at once.

Step 3. Select MKV as the output format

In the Formats menu, select the file type you want to turn your media into and choose the target format for the files. Also, you can change the conversion settings: choose a different bitrate, resolution (including HD, Ultra HD, and even 4K), codec, etc. Pay attention to the SuperSpeed label: it indicates that the conversion will be performed with a very high speed and without losing quality.

Step 4. Convert AVI to MKV

To specify the output folder, click the Save to button. Hit the Convert button to launch the process. When the converting is done, the new media files will be saved to the chosen folder.

Now you know how to change the file format using the Movavi converter. WIth this tool, you can also reduce the file size, cut out clips from videos, crop pictures, and create animations from your favorite movies. Get the free trial version and test it out!

For those aiming to switch their files from AVI to MKV, Online Video Converter presents an easy and cost-free method. It allows users to convert AVI to MKV online for free, simplifying the format change. Learning how to convert AVI to MKV online is essential for those wanting to leverage MKV's advanced features without spending money. Online Video Converter provides an uncomplicated platform to convert AVI to MKV for free. This tool is not only accessible but also user-friendly, catering to both casual users and professionals. It ensures a smooth and effective conversion from AVI to MKV.

The AVI format, known as Audio Video Interleave, has been a mainstay in digital video technology. Developed by Microsoft, its key feature is its straightforwardness, making it compatible with a variety of media players and operating systems. AVI files typically have less compression, leading to larger file sizes but also maintaining high video quality. This format is favored for video editing and archival purposes, where preserving the original video quality is crucial.

In contrast, MKV, which stands for Matroska Video, is a newer format gaining traction for its adaptability. Its unique feature is the ability to encompass numerous video, audio, image, and subtitle tracks in one file, making it perfect for storing comprehensive multimedia content, such as movies or TV series. MKV is appreciated for its support of multiple audio tracks and subtitles, offering a richer multimedia experience.

Deciding which format is superior depends on individual needs. For extensive media storage with high-quality audio and video, MKV is the preferable choice. Its capacity to store various media tracks in a single file is unmatched. Meanwhile, AVI's simplicity and broad compatibility make it ideal for basic video playing and straightforward editing tasks.

What is AVI?

Full name

Audio Video Interleave

Format type

Video

Developed by

Microsoft

Description

AVI, or Audio Video Interleave, is a container format created by Microsoft in November 1992. Files in the AVI format can store both video and audio data and allow synchronous audio-video playback. If you are wondering how to open AVI files, see the list of associated programs below.

File extension

.avi

Technical details

AVI is a subformat of the Resource Interchange File Format (RIFF). Data within this file type is divided into two blocks. One block stores the video width, height, and frame rate, while the other contains audio and video data. Certain media players may not play the original AVI specification correctly since it doesn’t support modern compression techniques.

Associated programs

Windows Media Player, QuickTime Player, VLC, DivX Player, etc.

What is MKV?

Full name

Matroska Multimedia Container

Format type

Video

Developed by

Lasse Kärkkäinen

Description

MKV (or Matroska Multimedia Container) is a free, open source video container format created in 2002. It’s officially called Matroska after the Russian matryoshka dolls because all the video, audio, and subtitle tracks are held within a single file. This format enables synchronous playback of audio and video tracks. Since MKV supports a large number of codecs and even uncompressed video, this format retains the original quality, allowing you to enjoy your videos in HD. Check this table if you want to know how to open MKV files and which programs can play them.

File extension

.mkv, .mk3d, .mka, .mks

Technical details

Videos with the MKV file type have a data channel for each type of track, making this format closer to other media containers such as AVI or MP4. A disadvantage of the MKV format is that very few modern programs can play files with these specifications correctly, so users have to install additional applications or codecs, for example, the VLC player or K-Lite Codec Pack.

Associated programs

VLC

Join for how-to guides, speсial offers, and app tips!