01
ADD YOUR OPUS
Drop the OPUS file into the box above or choose it from your device.
OPUS → M4R / online converter
OPUS to M4R Converter
Turn an Opus file into an iPhone ringtone from its first 30 seconds.
01 / how to
How to convert OPUS to M4R
02
CONVERT TO M4R
M4R is already selected. Press Convert and wait a few seconds.
03
DOWNLOAD
Save the finished M4R 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 an iPhone ringtone (AAC in an iTunes-style MP4) at 192 kbps
- The first 30 seconds are kept, safely under the 40-second limit of iOS ringtones
- Title, artist and album tags are carried over
Good to know
- The ringtone always starts at the beginning of the file. To use another part of the song, trim the audio first.
- To install it, add the .m4r to your iPhone in Finder (Mac) or the Apple Devices app / iTunes (Windows), then pick it in Settings > Sounds & Haptics.
- 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 M4R
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
M4R
An M4R file is an iPhone ringtone: AAC audio in an Apple MP4 container, renamed to .m4r. iPhones only accept ringtones shorter than 40 seconds.
Used in: iPhone ringtones
04 / more
More conversions
Have a different file? Open the main converter — it detects the format for you.