MP3 to M4R
Convert MP3 to M4R online and free
Step 1 - Select a file(s) to convert
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Employees of some of the world’s most well-known brands rely on Zamzar to convert their files safely and efficiently, ensuring they have the formats they need for the job at hand. From global corporations and media companies, to respected educational establishments and newspaper publications, employees of these organisations trust Zamzar to provide the accurate and reliable conversion service they need.












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From your personal desktop to your business files, we've got you covered
We offer a range of tools, to help you convert your files in the most convenient way for you. As well as our online file conversion service, we also offer a desktop app for file conversions straight from your desktop, and an API for automated file conversions for developers. Which tool you use is up to you!
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Convert documents, videos, audio files in one click
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Why choose Zamzar?
With Zamzar, file conversions are easy, reliable and convenient, so you can quickly convert your documents, images, videos, and more, to the formats you need. With faster downloads of converted files, and friendly and helpful support when you need it, you’ll have everything you need to work with your files.

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Having launched in 2006, we’ve spent a long time refining our process so that converting files with us is seamless, quick and completely pain-free.

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Tools to suit your file conversion and file compression needs
You’ll find all the conversion and compression tools you need, all in one place, at Zamzar. With over 1100 file-conversion types supported, whether you need to convert videos, audio, documents or images, you’ll easily find what you need and soon have your files in the formats and sizing that work for you.
MP3 Audio Format MP3 Converter
MP3 is the most common format for storing and playing digital music. It’s short for ‘MPEG-1 Audio Layer 3’, and it was developed in the early 1990s as a way of compressing audio to create smaller files that could be easily shared and stored without losing too much sound quality.
MP3 is a universal format maintained by the International Office for Standardization (ISO). MP3 tracks will play on almost any device and with most media players, including Windows Media Player and Apple Music. Digital music took off in the 1990s and 2000s, and many users used media players to ‘rip’ CDs, or download tracks from sites like Napster, turning MP3 into the most common audio format. Because MP3 uses ‘lossy’ compression that can’t be reversed, some music listeners prefer to use other formats such as FLAC, even if the file sizes are bigger.
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M4R Audio Format M4R Converter
An M4R is often referred to as an iPhone ringtone file. Developed by Apple, an M4R file is similar to an M4A file with the main difference being that an M4R file can only be 30 seconds in length and they are typically converted using iTunes itself. The way they work is a user selects a song they from their iTunes library that they want as a ringtone and they saved it as an M4R file and reimport back into iTunes giving them their own custom ringtone.
To avoid piracy M4R files can only created using music that has been purchased from iTunes. M4R files can be played by iTunes and on all Apple devices, and can also be played via the VLC media player but to play an M4R file using a program that isn’t Apple based would mean a user has created the file using software that is not linked with Apple and therefore do not include copyright protection.
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How to convert a MP3 to a M4R file?
- 1. Choose the MP3 file that you want to convert.
- 2. Select M4R as the the format you want to convert your MP3 file to.
- 3. Click "Convert" to convert your MP3 file.
Convert from MP3
Using Zamzar, it is possible to convert MP3 files to a variety of other formats:
MP3 to AAC MP3 to AC3 MP3 to FLAC MP3 to M4A MP3 to M4R MP3 to MP4 MP3 to OGG MP3 to WAV MP3 to WMAConvert to MP3
Using Zamzar, it is possible to convert a variety of other formats to MP3 files:
264 to MP3 3G2 to MP3 3GA to MP3 3GP to MP3 3GPP to MP3 AAC to MP3 AC3 to MP3 AIFC to MP3 AIFF to MP3 AMR to MP3 APE to MP3 ASF to MP3 AVI to MP3 AZW to MP3 AZW3 to MP3 CAF to MP3 CBC to MP3 CBR to MP3 CBZ to MP3 CHM to MP3 DOC to MP3 DOCX to MP3 EPUB to MP3 F4V to MP3 FB2 to MP3 FLAC to MP3 FLV to MP3 GVI to MP3 LIT to MP3 LRF to MP3 M2TS to MP3 M4A to MP3 M4B to MP3 M4R to MP3 M4V to MP3 MIDI to MP3 MKV to MP3 MOBI to MP3 MOD to MP3 MOV to MP3 MP4 to MP3 MPG to MP3 MTS to MP3 ODT to MP3 OGA to MP3 OGG to MP3 PDB to MP3 PDF to MP3 PML to MP3 PRC to MP3 PUB to MP3 RA to MP3 RAM to MP3 RB to MP3 RM to MP3 RMVB to MP3 TCR to MP3 TS to MP3 TXT to MP3 VOB to MP3 WAV to MP3 WEBM to MP3 WMA to MP3 WMV to MP3 WPD to MP3 WPS to MP3Frequently asked questions
If you’ve got any questions about converting or compressing files with Zamzar, we’re happy to help! We’ve answered a few commonly-asked questions below, to get you started, and you can find out more information about file conversion and compression with Zamzar, in our Help centre.
There are three main ways to convert MP3 files to M4R iPhone ringtones. You can use a free online conversion tool like Zamzar to quickly and easily convert multiple files at the click of a button. You can also convert files by converting them to AAC in your iTunes account, then renaming them as .M4R files; however, you would need to change each individual audio track, so it can be quite time consuming if you have a lot of files.
Another way is to convert your files using a downloaded software, such as Wondershare UniConverter, although you may need to pay to use the software and would need to install it on your device.
If you want to create an M4R ringtone file, Zamzar’s easy conversion tool could help. You can upload individual or multiple music tracks to Zamzar and convert them for free using the three-step tool, without downloading any additional software. Another option is to convert or rename audio tracks to .M4R using iTunes or using a media-editing software you install on your computer, such as Wondershare UniConverter.
You can easily turn any MP3 audio file into a ringtone for your iPhone. Online conversion tools like Zamzar let you quickly and easily create iPhone ringtones in real time. Just upload your MP3 file to Zamzar’s website, click to convert it, and then download a converted M4R ringtone file. Alternatively, you can do this using your iTunes library, by selecting tracks and converting them, first to AAC and then changing the file extensions to .M4R.
Either M4R or MP3 may be better for you, depending on what you’re using the track for. MP3s are better for playing music. But if you want to turn your songs, audio clips or voice notes into an iPhone ringtone or alarm, you’ll need to convert it to an M4R file. It will also take up less space on your device. Zamzar’s easy MP3 to M4R converter lets you quickly create new iPhone ringtone files. It’s a simple three-step tool – just upload, click to convert, then download your file.
If you have a Mac, there are a couple of ways you can change MP3 files to M4R without downloading any extra software. Zamzar’s online conversion tool lets you quickly convert individual or multiple MP3s into M4R iPhone ringtone files. Alternatively, you can manually convert files to M4R using iTunes, or by downloading media-editing software. However, it can be time consuming to convert files manually, and downloaded software takes up memory on your Mac and may cost money to use.