MP3 to M4R Converter
Convert MP3 (MPEG-1 Audio Layer-III) to M4R (MPEG-4 Part 14) online and completely free.
How to convert MP3 to M4R online
- 1To get started, upload one or more .mp3 files to the converter area.
- 2Then use the audio conversion settings and click the "Convert" button.
- 3When the conversion is complete, you can download .m4r files.
MP3
MP3 (MPEG-1 Audio Layer III)
MP3
MP3 is a popular lossy audio format. This allows you to maintain acceptable sound quality with small file size. For most users, this loss of sound quality is almost imperceptible, so the MP3 format quickly gained its popularity, allowing you to store more songs on compact digital devices such as smartphones and iPods. Its small size made it a perfect choice for sharing music online.
File type: Audio
File extension: .mp3
Developed by: Fraunhofer Society
Initial release: 1993
M4R
M4R (MPEG-4 Part 14)
M4R
M4R is the audio format used by Apple in the iTunes application. M4R files are usually ringtones that you can install on your iPhone. At its core, M4R is a regular M4A (MPEG-4) audio file, and the .m4r extension is used to distinguish ringtones from other melodies. Often the maximum length of an M4K ringtone is limited to 40 seconds. If you downloaded such a file from the music store on your iPhone, you will need to convert it to use on other devices.
File type: Audio
File extension: .m4r
Developed by: Apple Inc.
Initial release: 2001
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