OPUS to M4A Converter

Batch convert opus files to m4a online. Change opus to m4a on Windows, Mac, Iphone or Android in a couple of clicks.

Select files for conversion or drag and drop them to the upload area.
Your files are securely protected and available only to you.
All files are automatically deleted from our servers after 1 hour.

How to convert OPUS files to M4A online?

Step-by-step instructions for converting opus files to m4a

Upload OPUS-file

Click "Choose File" button to select a opus file on your computer. OPUS file size can be up to 100 Mb.

Convert OPUS to M4A

Click "Convert" button to start conversion.

Download your M4A

When the conversion process is complete, you can download the M4A file.


  • ❓ How can I convert OPUS to M4A?
    First you need to add file for conversion: drag and drop your OPUS file or click the "Choose File" button. Then click the "Convert" button. When OPUS to M4A conversion is completed, you can download your M4A file.
  • ⏱️ How long does it take to convert OPUS to M4A?
    Audio conversion is pretty fast. You can change OPUS to M4A in a few seconds.
  • 🛡️ Is it safe to convert OPUS to M4A on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including OPUS to M4A) is absolutely safe.
  • 💻 Can I convert OPUS to M4A on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our OPUS to M4A converter works online and does not require software installation.

Information about OPUS and M4A file formats

Full name OPUS - Opus Audio Format M4A - Audio-only MPEG-4
File extension .opus .m4a
MIME type audio/opus video/mp4
Developed by IETF codec working group International Organization for Standardization
Type of format Audio Media container
Description Opus is a lossy audio coding format developed by Xiph and standardized by the IETF, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low end ARM3 processors. MPEG-4 Part 14 or MP4 is a digital multimedia container format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. M4A stands for MPEG 4 Audio and is a filename extension used to represent audio files.
Technical details Opus supports constant and variable bitrate encoding from 6 kbit/s to 510 kbit/s, frame sizes from 2.5 ms to 60 ms, and five sampling rates from 8 kHz (with 4 kHz bandwidth) to 48 kHz (with 20 kHz bandwidth, the human hearing range). An Opus stream can support up to 255 audio channels, and it allows channel coupling between channels in groups of two using mid-side coding. Audio-only MPEG-4 files generally have a .m4a extension. This is especially true of non-protected content. M4A is often compressed using AAC encoding (lossy), but can also be in Apple Lossless format.
File conversion OPUS conversion M4A conversion
Associated programs FFmpeg, AIMP, Amarok, cmus, foobar2000, Mpxplay, MusicBee, SMplayer, VLC media player, Winamp Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player
Wiki https://en.wikipedia.org/wiki/Opus_(audio_format) https://en.wikipedia.org/wiki/MPEG-4_Part_14
OPUS to M4A conversion quality rating:
4.3 (875 votes)
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