How to Convert AVI to MKV without Damaging Video Quality

How to Convert AVI to MKV without Damaging Video Quality

Selena Thomas

May 11, 2021 08:50Posted by to Convert Video

This guide will tell you how to convert AVI to MKV. Both AVI and MKV are uncompressed video formats to store digital audio and video contents. As an open container format, MKV gains the popularity of movie studios. AVI, on the other hand, is a proprietary container developed by Microsoft for. The biggest different between AVI and MKV is that the former can only store a single video and a single audio track while the latter is able to contain multiple streams in one video file.


Part 1: Convert AVI to MKV without Quality Loss

Since both AVI and MKV are HD video formats, many people worry about quality loss while converting. In such situation, a powerful video converter almost determines the result. Blu-ray Master Video Converter Ultimate, for example, utilizes AI technology to optimize quality. More importantly, it enables you to add extra audio and subtitles to your MKV output.

Main Features of the Best AVI to MKV Converter

How to Convert AVI to MKV in Batch

Step 1

Open AVI files

Run the best video converter once you install it on your computer. Then go to the Add Files menu and select Add Files or Add Folder to import the AVI files you want to convert. The video converter is available to both PC and Mac.

Add file

Step 2

Edit video

After video loading, you will see all of them in the library panel. Click the Edit button on a video to open it in the video editor window. Here you can edit the video before converting. To add extra audio, for example, go to the Audio tab, click the Plus icon to add a new track, adjust the Volume and Delay, click OK to confirm it.

Add Audio

Step 3

Convert AVI to MKV

Click the Convert All to menu at upper right side, choose MKV and pick a proper preset. Set the destination folder at the bottom and click Convert All button to begin converting AVI to MKV.

Convert All

Part 2: How to Convert AVI to MKV Online

Blu-ray Master Free Online Video Converter is a portable solution if you do not like to install video converter software. It allows you to convert AVI to MKV online for free. Although there is no bonus features, it is enough to meet your basic need on video converting.

Step 1

Whenever you want to convert AVI to MKV, access in a browser. Click the Launch Free Converter button to download the launcher.

Download Launcher

Step 2

Click the Add File button on the launcher to upload source AVI files from your computer. Then choose MKV at the bottom.

Convert MKV

Step 3

Hit the Convert button to initiate converting AVI to MKV online.

Part 3: How to Convert AVI to MKV for Free

Method 1: How to Convert AVI to MKV with HandBrake

HandBrake is an open-source video converter and free to use on PC and Mac. However, it only supports three output formats, MP4, MKV, and WebM. For AVI to MKV converting, HandBrake is a good choice.

Convert AVI to MKV HandBrake

Step 1

Open the free AVI to MKV converter and click the Open Source menu from the top ribbon and add an AVI file from your computer.

Step 2

Click the Browse button at Destination section and set a specific folder to save the result. Open the Container dropdown list and choose MKV. Go to the Presets panel and choose a proper preset.

Step 3

Click on the Start Encode menu and HandBrake will convert AVI to MKV immediately.

Method 2: How to Convert AVI to MKV by VLC

VLC is both a free media player and AVI to MKV converter for Windows, Mac and Linux. You can use the full version without paying a penny. The downside is the poor output quality. If you do not mind, follow the steps below:

Step 1

Start VLC from your desktop, click Media and Convert/Save.


Step 2

Click the Add button on the open media dialog and add the AVI file to convert. Hit the Convert/Save button continue.

Step 3

Open the Profile dropdown list and choose MKV. If you cannot find it, click the Profile Edit button, select MKV, enter a profile name and click Create to add it to the list.

Profile Editor

Step 4

Set a specific destination in Destination section and click Start button. It takes as long as the video to complete the process.

Profile Edit

Method 3: How to Convert AVI to MKV via FFmpeg

FFmpeg is not another way to convert AVI to MKV for free. Unlike other video converter software, it utilizes program language to do the job. Therefore, it is not a good choice for beginners.

MKV via FFmpeg

Step 1

Install FFmpeg on your computer and open a command prompt window.

Step 2

Input the command C:\Windows\System32\ffmpeg.exe –i D:2019.avi D:\2019.mkv, press Enter key on your keyboard.

Extended Reading

• Play MKV Video Files in QuickTime Player on Mac

• Apple TV MKV – 3 Most Efficient Ways to Play MKV Videos on Apple TV

Part 4: FAQs about Converting AVI to MKV

Is it safe to convert AVI to MKV online?

It is difficult to answer this question. It depends on the web video converter you are using. If it is trustable and promises to delete your videos after converting, it is okay.

Can I add new audio track while converting MKV?

Some video converters also allow you to edit audio and subtitle while converting videos, such as HandBrake. However, VLC does not provide such capacity.

Which is better MKV or AVI?

The answer is determined by your purpose. MKV is able to store several video and audio tracks separately while AVI works well on PC and Windows Media Player.


This article has shared five ways to convert your favorite AVI files into MKV videos. You can choose your favorite method and follow our guide to do the job quickly. Blu-ray Master Video Converter Ultimate is the best AVI converter if you are sensitive to the video output quality. More questions? Please leave a message below this post.

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