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MP3 to M4R Converter

Convert MP3 to M4R. Trim to 30 seconds or less and AirDrop the result to set it as a ringtone.

Drop MP3 files here
or click anywhere in this box to choose files

Max file size 50MB. Sign up for more.

MP3 to M4R FAQ

Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert MP3 files to M4R.

How do I convert MP3 to M4R?
Upload your MP3 audio to iFormat and click Convert. The track is decoded and re-encoded to M4R with metadata preserved. It's free, needs no account, and supports batch conversion of albums or playlists.

How to convert MP3 to M4R without losing sound quality
M4R is the iPhone ringtone format. Converting to a lossless target (WAV, FLAC, AIFF) preserves every detail of the original. Converting between lossy formats involves a small, usually inaudible re-encoding step. For the best result, always start from the highest-quality source file you have.

Can I convert multiple MP3 files to M4R at once?
Yes — upload an entire album or playlist of MP3 files and iFormat batch-converts them all to M4R. Metadata (title, artist, album, cover art) carries over for each track, so your library stays organised after conversion.

Does MP3 to M4R conversion keep track info like artist and album?
Yes — ID3 metadata such as title, artist, album, and cover art carries over automatically wherever the M4R format supports it, so your library stays organised after conversion.

What is MP3?
MP3 is the near-universal lossy audio format, typically used for music and podcasts on any device. Converting it to M4R makes the file easier to open, share, or upload where MP3 is not supported.

How do I open MP3 files?
On Windows: Media Player, or any browser. On a Mac: Music, QuickTime, or any browser. Plays on essentially everything made in the last twenty-five years.

How do I make an iPhone ringtone from an MP3?
Converting MP3 to M4R creates an iPhone-compatible ringtone. The converter trims to a maximum of 40 seconds (iPhone's limit) and produces the correct M4R format. Import the M4R to your iPhone via iTunes, Finder, or AirDrop.
Need the reverse conversion?
Convert M4R back to MP3 with our companion tool.
M4R to MP3 converter

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