Please wait...
The chosen files cannot be converted to the same target format.
Please remove some of the files, preferably leaving ones with the same or similar source formats.
Check below for errors.
OR
By selecting a target format, you agree to our Terms and initiate the conversion.
Your conversions have used server resources for about
[time].
Conversions use server resources without any cost for you.
Consider supporting us and unlock more features:
Happy with the converted files?
Your files are automatically deleted from our servers after 4 hours.
... selected
Drop More Files Here...
How to convert M4A to OPUS?
You can convert M4A to OPUS with MConverter in three easy steps:
Choose M4A files from your device
At the top of this page, drag and drop your M4As. You can also click to select M4A files using your operating system's file picker. Another method is to press the keyboard shortcut Ctrl+V (⌘+V on Mac) to paste an M4A file you have copied to clipboard. Converting a folder with M4A files to OPUS is also supported: simply paste or drag and drop it.
Click or tap on OPUS from the list of target formats
Alternatively, you can use the search field to quickly find the format you need, whether it's OPUS or something else.
Download your OPUS files, after MConverter has finished processing them
There's an option to automatically download the converted OPUS files, so you don't have to press the download icon for each OPUS. On desktop platforms, you can download the OPUS files to a different folder by clicking on SAVE TO... You may see a share icon as well. Use it to directly share the OPUS's with other apps.
About the formats
File extension
.m4a
Category
Audio file formats
Developed by
Apple
Mime type
audio/m4a
Format description
M4A files store audio using the AAC codec. M4A stands for MPEG-4 Audio. It is very similar to MP4 with the difference being the lack of a video/subtitle track in the file.
File extension
.opus
Category
Audio file formats
Developed by
Xiph.Org Foundation
Mime type
audio/ogg
Format description
OPUS files contain audio in the lossy Opus format. It was developed for online streaming and supports variable bitrates. Similarly to MP3, which is also lossy, OPUS files do not contain an exact copy of the original audio recording. This is done to take up less space.
Common questions about converting M4A to OPUS
Can I convert M4A to OPUS in bulk?
Yes, MConverter supports batch converting of multiple M4As to OPUS's simultaneously. You can even drag and drop folders containing M4As to convert to OPUS. Pasting M4A files and folders copied in the clipboard also works: use Ctrl+V.
Can I convert an M4A file to OPUS, if its size is 2 GB?
Yes, with MConverter Pro you can convert big M4As, up to 2 gigabytes each. The free version lets you convert files up to 100 MB. If you need to convert M4A 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 M4As to OPUS safe with MConverter?
Yes, we encrypt your connection using industry standards. Plus, your M4A 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 M4As and other converted files immediately after finishing the conversion by clicking the bin icon. Join thousands who have trusted us to convert over 12,329,628 files so far.
How long does it take to convert M4A to OPUS?
For most audio files, the wait is usually around a minute. However, MConverter also supports converting larger audio files, meaning that it could take a while (up to over an hour, for example).
M4A to OPUS Converter Rating
4.6
18 votes
Made with 💙 in 🇧🇬
Blocking ads?
Get 9 more conversions for FREE by adding an exception for our website in your ad blocker and in Tracking Prevention (if it's set to Strict).