Convert M4R to 3GP online, for free.
Apple iPhone Ringtone (M4R) is the file format Apple uses to store ringtones on iPhones. The maximum length of an M4R file is 40 seconds. The only difference between M4R and MPEG 4 Audio (M4A) is the file extension, which lets an iPhone know M4R is a ringtone instead of a song.
As a format deployed by Apple for iPhone ringtones, M4R files open on iTunes by default.
Alternatively, Apple iOS is another good choice for opening M4R files. To create a custom ringtone, simply save an M4A file as an M4R file, and then import it into the iPhone.
Developed by: Apple Inc.
Initial Release: 2007
3GPP (3GP) is a multimedia container format designed for third generation (3G) universal mobile telecommunications system (UMTS) networks, which is a global system for mobile (GSM) standard. Since UMTS is a technology for mobile, the 3GP format allows mobile phones on UMTS networks to capture, save, deliver, and play media over high-speed wireless connections.
The best application for opening 3GP is Apple QuickTime. And although 3GP is designed for mobile, the file format opens easily on most operating systems, including Linux, Mac, and Windows.
3GP is a flexible file format that supports captions and subtitles via 3GPP Timed Text. It does not support interactive menus, but it is compatible with free third-party tools that provide such support. One example is AutoGK. To improve the quality of the video while viewing off-mobile, convert the file to MP4.
Developed by: 3rd Generation Partnership Project (3GPP)
Initial release: 1997
FreeConvert.com can convert your other files to 3GP format:
FreeConvert.com can convert your M4R files to these other formats:
Want to convert large files without a queue or Ads?