Convert M4R to MP3

Convert M4R files to MP3 format online for free. No upload required, 100% private.

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M4RMP3Re-encoding

Converting between two lossy formats (M4R → MP3) involves re-encoding, which may cause additional quality loss. For best results, convert from the original source file when possible.

About M4R

M4R

iPhone Ringtone Format

M4R is the ringtone format used by Apple iPhones. It is essentially an M4A file with a different extension, limited to 40 seconds for ringtones.

Extension
.m4r
Developed By
Apple Inc.
Released
2007
Compression
Lossy

Typical Use Cases

iPhone ringtonesiOS alert tonesCustom notification sounds

Pros

  • • Native iPhone support
  • • Easy to create from M4A
  • • Good audio quality

Cons

  • • iPhone only
  • • 40 second limit
  • • Requires iTunes for transfer

About MP3

MP3

MPEG-1 Audio Layer III

MP3 is the most widely used lossy audio compression format. It achieves significant file size reduction while maintaining acceptable audio quality for most listeners.

Extension
.mp3
Developed By
Fraunhofer Society
Released
1993
Compression
Lossy

Typical Use Cases

Music streamingPodcastsPortable music playersWeb audio

Pros

  • • Universal compatibility
  • • Small file size
  • • Wide software support

Cons

  • • Lossy compression
  • • Quality loss at low bitrates
  • • No metadata flexibility