File Convert

Convert AU to CAF

Free online AU-to-CAF converter — upload a AU file and download a CAF. Fast, private, no signup.

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AU vs CAF

AU

Sun/NeXT AU — a simple, long-lived PCM audio container.

About AU ↗

CAF

Core Audio Format — Apple's container (here written with lossless ALAC).

About CAF ↗

AU to CAF: frequently asked questions

How do I convert AU to CAF?

Drop your AU file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a CAF to download. No software to install.

Is the AU to CAF converter free?

Yes. Convert AU to CAF for free right in your browser, with no account needed to get started.

Is it safe and private?

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.

What's the difference between AU and CAF?

Sun/NeXT AU — a simple, long-lived PCM audio container. Core Audio Format — Apple's container (here written with lossless ALAC).

Related conversions

Convert AU to: MP3 · WAV · FLAC · M4A · AAC · AC3 · AIFF · DTS · M4B · M4R

Convert to CAF from: AAC · AC3 · AIFF · AMR · APE · DFF · DSF · DTS · FLAC · M4A

Browse all supported formats →