AU to MP3 Converter
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AU is an older Sun and Unix audio format used for system sounds, legacy recordings, and simple audio storage. Convert AU files online to MP3, WAV, FLAC, M4A, AAC, AIFF, and other modern audio formats for easier playback and preservation.
MP3 is the most widely supported compressed audio format for music, podcasts, voice notes, and web playback. Convert MP3 files online to WAV, FLAC, M4A, AAC, AIFF, WMA, and other audio formats for editing, higher-quality workflows, or platform-specific requirements.