Opus is a fast, free and lossy audio codec. It is very popular with telephony applications, such as in Skype, WhatsApp and Google Hangouts. Since macOS High Sierra , Mac comes with native playback support for Opus audios. Only those Opus audios in a CAF container is supported though. The .opus file extension or container is not recognized by Mac OS. iTunes can’t play .opus audios, neither can QuickTime Player. You need a third party media player if you want to play Opus audios or music on Mac. We recommend VLC media player which can not only play OPUS but also convert OPUS file on Mac.
Play OPUS on Mac for free
Install and run the above media player on your Mac. To play the OPUS audios in VLC player, lick File > Open, browse to the OPUS files saved on your computer and load them to the media player. Alternatively you can just drag and drop the OPUS files from Finder to the player.
Convert OPUS to AAC, M4A, MP3 or else
VLC media player is able to play all major video and audio types. Other than that, you can also use it to convert audio and video files. Click File > Convert & Stream.
Then, click Open media… to add the .opus file to the converter. Select an audio profile from the Choose Profile section. For example, you can choose to convert OPUS to MP3 as it is the most popular audio format supported by most devices and players. Choose Save as File, select a folder to save it and give it a name such as example.mp3. See below screenshot.
Hit the Save button at the bottom right corner to transcode the OPUS file and save it in the selected audio format to the folder you have specified.
You can find it in Finder, play it with QuickTime Player or other music players you have on your Mac.