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How to convert AVIF to MKV?
You can convert AVIF to MKV with MConverter in three easy steps:
Choose AVIF files from your device
At the top of this page, drag and drop your AVIFs. You can also click to select AVIF files using your operating system's file picker. Another method is to press the keyboard shortcut Ctrl+V (⌘+V on Mac) to paste an AVIF file you have copied to clipboard. Converting a folder with AVIF files to MKV is also supported: simply paste or drag and drop it.
Click or tap on MKV from the list of target formats
Alternatively, you can use the search field to quickly find the format you need, whether it's MKV or something else.
Download your MKV files, after MConverter has finished processing them
There's an option to automatically download the converted MKV files, so you don't have to press the download icon for each MKV. On desktop platforms, you can download the MKV files to a different folder by clicking on SAVE TO... You may see a share icon as well. Use it to directly share the MKVs with other apps.
About the formats
File extension
.avif
Category
Image file formats
Developed by
AOMedia (Alliance for Open Media)
Mime type
image/avif
Format description
The AV1 Image File Format (AVIF) is a new format which promises better compression and smaller file sizes than JPEG, PNG, WebP, and all other current image formats on the web. Based on the generic HEIF image format, AVIF supports alpha transparency, HDR, lossy and lossless compression. AVIF is already being used by Netflix and Microsoft.
Which browsers support AVIF and since when?
In 2024, all major browsers can render AVIF images. Support in Google Chrome and Chromium-based browsers (like Microsoft Edge, Brave, and Opera) has landed in late August 2020. Firefox can display AVIF images from version 93, released in October 2021. Apple's Safari can finally recognize and show AVIF images starting with iOS 16, released in September 2022.
File extension
.mkv
Category
Video file formats
Developed by
Matroska
Mime type
video/x-matroska
Format description
MKV files are MatrosKa Video files. Like the Russian Matryoshka doll, which contains multiple smaller dolls nested inside each other, the MKV format can contain multiple video, audio, and subtitle tracks inside a single file. This makes it convenient to have one video with a number of audio and subtitle tracks in different languages, all inside a single playable file.
Common questions about converting AVIF to MKV
Can I convert AVIF to MKV in bulk?
Yes, MConverter supports batch converting of multiple AVIFs to MKVs simultaneously. You can even drag and drop folders containing AVIFs to convert to MKV. Pasting AVIF files and folders copied in the clipboard also works: use Ctrl+V.
Can I convert an AVIF file to MKV, if its size is 2 GB?
Yes, with MConverter Pro you can convert big AVIFs, up to 2 gigabytes each. The free version lets you convert files up to 100 MB. If you need to convert AVIF files over 100 megabytes, try MConverter Pro. If your files aren’t over 1 GB, then you can use MConverter Plus instead, as it’s cheaper.
Is converting AVIFs to MKV safe with MConverter?
Yes, we encrypt your connection using industry standards. Plus, your AVIF files are only accessible by you. 4 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your AVIFs and other converted files immediately after finishing the conversion by clicking the bin icon. Join thousands who have trusted us to convert over 12,547,789 files so far.
How long does it take to convert AVIF to MKV?
For most images, the wait should be less than a minute. If they are animated, it may take a little longer. However, MConverter also supports converting larger images, meaning that it could take a while (up to over an hour, for example).
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