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Drop one AIFF or two hundred. Batch conversion is not a paid feature here.
Convert AIFF to MP3
Uncompressed audio exported from Logic, GarageBand or an older Mac workflow is too large to send.
Runs on your deviceFreeNo sign-upBatch supported
Audio is re-encoded on your device. The engine downloads once, then works offline.
Waiting for files/Engine: on-device/Network requests made: 0
What actually changes
AIFF and MP3 are not the same picture in two wrappers.
AIFF's uncompressed PCM is encoded as MP3, cutting the size by roughly ten times at 192 kbps.
Worth knowing first
AIFF is Apple's PCM format and stores its samples big-endian, where WAV stores them little-endian. The audio is identical either way, which is why AIFF to MP3 and WAV to MP3 produce the same result from the same recording.
Questions
AIFF to MP3, answered
Is AIFF better quality than WAV?
No. Both are uncompressed PCM. The difference is byte order and metadata conventions.
Do my Logic markers survive?
No. Region markers and project metadata are not carried into an MP3.
How to convert AIFF to MP3
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Choose your settings
MP3 Audio is lossy, so the quality control decides the trade between size and fidelity.
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Download
Instant, because the file never went anywhere. Nothing expires, since nothing was stored.