Convert M4R to AAC
Fast, free M4R to AAC conversion — works in any browser
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m4r
M4R: the ringtone file used in Apple iOS
| File extension | .m4r |
|---|---|
| File category | audio |
| Programs | Apple iTunes GarageBand Audacity |
| Tech description | https://en.wikipedia.org/wiki/M4A |
| MIME type | audio/x-m4r |
| Developer | Apple Inc. |
The M4R format is used on Apple's mobile devices, mostly for storing ringtones. You can create an M4R file by converting other formats or downloading it from the iTunes Store. M4R is based on the standardized MPEG-4 format and is commonly encoded with AAC audio. One of its strengths is good sound quality at a small file size.
aac
Advanced Audio Coding (AAC)
| File extension | .aac |
|---|---|
| File category | audio |
| Programs | Apple iTunes VLC media player Windows Media Player Winamp foobar2000 |
| Tech description | https://en.wikipedia.org/wiki/Advanced_Audio_Coding |
| MIME type | audio/aac |
| Developer | AT&T Bell Labs, Fraunhofer IIS, Dolby, Sony |
AAC (Advanced Audio Coding) is a lossy audio compression format standardized by the MPEG group in 1997, designed as the successor to MP3. At the same bitrate, AAC delivers noticeably better audio quality thanks to improved psychoacoustic modelling, support for up to 48 audio channels, and sampling frequencies from 8 to 96 kHz. AAC is the default audio format on Apple devices, iOS, iTunes, and YouTube. Files typically use the .aac or .m4a extension. Developed jointly by AT&T Bell Labs, Fraunhofer IIS, Dolby, and Sony, AAC is natively supported on Android, iOS, Windows, macOS, and most modern media players.
FAQ
How to convert AAC to M4R?
Upload your AAC file, select M4R as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert AAC to M4R?
Most AAC files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert AAC files online?
Yes. All uploaded AAC files and converted M4R results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert AAC on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the AAC file and convert to M4R without installing any app.
