Got Old MMF Ringtones?
MMF files were the ringtone format on Samsung, Sony Ericsson, and other phones of the early 2000s. They hold the score for synthesized music, tunes many people still want but nothing modern will play.
AAC is the format Apple's ecosystem and most streaming audio settled on. Convert your MMF to AAC and the tune slots into an iPhone library, an iPad, or anything else built this decade.
How to Convert MMF to AAC
- Upload your MMF file - Drag and drop or tap to select from your device
- Confirm AAC output - AAC is selected as the target format
- Download your audio - Your converted file is ready for any modern device
Start from any browser; the actual conversion happens on our servers. No software to install, no account required.
AAC or MP3? An Honest Answer
AAC compresses more cleverly than MP3, so at low bitrates it sounds better from the same file size. For a ringtone lasting a few seconds, though, both files come out tiny, and you won't hear the difference on a phone speaker. Size isn't the real question here.
Pick AAC when the file is headed into an Apple library or an app that expects it. Pick MMF to MP3 when you want the one file guaranteed to play on anything, old car stereos included. And if the goal is your old tone ringing on an iPhone, skip straight to MMF to M4R, which is AAC dressed for that job.
What Comes Out of the Converter
The full tune. An MMF stores notes for a phone's synthesizer chip rather than recorded sound, so we perform those notes through a synthesizer and encode the result as AAC. Melody and timing are exact; the instrument tone is a close match to the original chip.