Free online MP3-to-AU converter — upload a MP3 file and download a AU. Fast, private, no signup.
Drop your MP3 file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a AU to download. No software to install.
Yes. Convert MP3 to AU for free right in your browser, with no account needed to get started.
Your file is transferred over an encrypted connection and anonymous uploads are temporary. You can also view and strip metadata (location, device, author) before you download.
Ubiquitous lossy compressed audio. Sun/NeXT AU — a simple, long-lived PCM audio container.
Convert MP3 to: WAV · FLAC · M4A · AAC · AC3 · AIFF · CAF · DTS · M4B · M4R
Convert to AU from: AAC · AC3 · AIFF · AMR · APE · CAF · DFF · DSF · DTS · FLAC