01
ADD YOUR OPUS
Drop the OPUS file into the box above or choose it from your device.
OPUS → M4A / online converter
OPUS to M4A Converter
Convert Opus to M4A (AAC) for iPhone, iTunes and Apple Music.
01 / how to
How to convert OPUS to M4A
02
CONVERT TO M4A
M4A is already selected. Press Convert and wait a few seconds.
03
DOWNLOAD
Save the finished M4A file. The original is deleted from our server.
02 / what you get
What happens to your data
Kept
- Opus files from WhatsApp, Discord and other apps are supported
- Saved as M4A (AAC) at 192 kbps, which plays on iPhone, iTunes, Apple Music and almost every modern player
- Title, artist and album tags are carried over
Good to know
- Embedded cover art is not carried over. Only the sound is converted.
- Both formats compress with quality loss, so every conversion costs a little quality. Keep your OPUS original.
03 / formats
OPUS vs M4A
OPUS
An OPUS file uses one of the most efficient audio codecs available today — smaller files than MP3 at equal quality, especially good for voice. It's what WhatsApp voice messages and Discord calls use under the hood.
Used in: Voice messages (WhatsApp) · Discord & voice calls · Modern streaming
M4A
An M4A file is a compressed audio format (usually AAC inside an MP4 container) used by Apple's ecosystem — iTunes, Apple Music, and voice memos on iPhone all default to it. Slightly better quality than MP3 at the same file size.
Used in: Apple Music & iTunes · iPhone voice memos · Audiobooks
04 / more
More conversions
Have a different file? Open the main converter — it detects the format for you.