iPhone Ringtone (M4R) is Apple's ringtone format based on AAC audio, used for custom ringtones on iPhones.
Scream Tracker 3 Module (S3M) is a tracker music format with support for up to 32 channels and diverse instrument types.
Reach for M4R when your priority is iphone ringtones, notification sounds — its efficient compression makes sharing fast and storage minimal.
Reach for S3M when your priority is dos game music, chiptune, demoscene — its uncompromising quality ensures every detail is preserved.
Learn more about M4R and S3M formats in our detailed guide.
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M4R (iPhone M4R) - iPhone Ringtone, AAC-based ringtone format. Best for iphone ringtones, notification sounds.
S3M (S3M modules) - Scream Tracker 3 Module, classic tracker music format. Ideal for dos game music, chiptune, demoscene.
Yes, GoConvertFile offers free conversion of M4R to S3M for files up to 100MB. No registration required.
Most M4R to S3M conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.
S3M is ideal for dos game music, chiptune, demoscene. Scream Tracker 3 Module, classic tracker music format
No, converting M4R to S3M does not cause additional quality loss — S3M uses lossless compression. However, any artifacts already present in the original M4R file will persist in the S3M output.
S3M files are typically 2-5x larger than equivalent M4R files because S3M preserves all pixel data. This is expected and necessary for lossless quality.