iPhone Ringtone (M4R) is Apple's ringtone format based on AAC audio, used for custom ringtones on iPhones.
Extended Module (XM) is the native format of Fast Tracker II, supporting samples, patterns, effects, and volume envelopes.
For iphone ringtones, notification sounds, nothing beats M4R. It hits the sweet spot between visual quality and file size, making it the default choice for millions.
Go with XM when tracker music, demoscene, retro game audio is on your mind. Its lossless pipeline means what you put in is exactly what comes out.
Learn more about M4R and XM formats in our detailed guide.
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M4R (iPhone M4R) - iPhone Ringtone, AAC-based ringtone format. Best for iphone ringtones, notification sounds.
XM (XM modules) - Extended Module, Fast Tracker II music module format. Ideal for tracker music, demoscene, retro game audio.
Yes, GoConvertFile offers free conversion of M4R to XM for files up to 100MB. No registration required.
Most M4R to XM conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.
XM is ideal for tracker music, demoscene, retro game audio. Extended Module, Fast Tracker II music module format
No, converting M4R to XM does not cause additional quality loss — XM uses lossless compression. However, any artifacts already present in the original M4R file will persist in the XM output.
XM files are typically 2-5x larger than equivalent M4R files because XM preserves all pixel data. This is expected and necessary for lossless quality.