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AU to MP3
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Securely convert your AU files to MP3 using our entirely local, in browser file converter. No download required, no data leaves your computer.

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AU

Sun AU

AU (Audio File Format or Sun AU) is a simple audio file format introduced by Sun Microsystems. It's primarily used on Unix-based systems and retains audio data in three parts: a header, a variable-length annotation block, and the actual audio data, making it suitable for simple audio tasks and computer system alerts.

MP3

MPEG Audio Layer III

MP3 (MPEG Audio Layer III) is a widely-used lossy audio compression format known for its ability to reduce file sizes while maintaining reasonable sound quality. Popularized in the late 1990s and early 2000s, it became the de facto standard for digital audio storage and playback, revolutionizing the music industry and the way we consume music.

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