AVIF to MP4 Converter • Online & Free • MConverter

How to convert AVIF to MP4?

You can convert AVIF to MP4 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 MP4 is also supported: simply paste or drag and drop it.
Click or tap on MP4 from the list of target formats
Alternatively, you can use the search field to quickly find the format you need, whether it's MP4 or something else.
Download your MP4 files, after MConverter has finished processing them
There's an option to automatically download the converted MP4 files, so you don't have to press the download icon for each MP4.
On desktop platforms, you can download the MP4 files to a different folder by clicking on SAVE TO...
You may see a share icon as well. Use it to directly share the MP4's with other apps.

About the formats

Extension	avif
Category	Image file formats
Developed by	AOMedia (Alliance for Open Media)
Mime type	image/avif

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.

Support in Google Chrome and Chromium-based browsers (like Microsoft Edge and Opera) has landed in late August 2020. Firefox can display AVIF images from version 93, released in October 2021. Meanwhile, Apple's Safari will support AVIF in iOS 16 (coming Fall 2022).

MConverter's AVIF encoder uses a Constant Rate Factor (CRF) of 10, so that there is no noticeable reduction in image quality while keeping the file size as small as possible.

MConverter also lets you create AVIF animations from video or GIF, up to 5 minutes long. Note that AVIF animations are currently only playable in Chrome and not Firefox.

Extension	mp4
Category	Video file formats
Developed by	MPEG (Moving Picture Experts Group)
Mime type	video/mp4

Description

MP4 (short for MPEG-4 Part 14) files store multimedia - video, audio and subtitles. Websites frequently use them for displaying videos because the MP4 format is universally supported.
However, newer video formats, such as WebM, produce smaller file sizes with almost no quality loss. Therefore, you can free up storage by converting your videos to WebM.

Common questions about converting AVIF to MP4

Can I convert AVIF to MP4 in bulk?

Yes, MConverter supports batch converting of multiple AVIFs to MP4's simultaneously. You can even drag and drop folders containing AVIFs to convert to MP4.
Pasting AVIF files and folders copied in the clipboard also works: use Ctrl+V.

Can I convert an AVIF file to MP4, if its size is 1 GB?

Yes, with MConverter Premium you can convert big AVIFs, up to 1 gigabyte each.
The free version lets you convert files up to 100 MB. If you need to convert AVIF files over 100 megabytes, try MConverter Premium.

Is converting AVIFs to MP4 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 others who have trusted us to convert over 5,261,812 files so far.

How long does it take to convert AVIF to MP4?

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).