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Audio · .caf

What Is a CAF File?

A .caf file is an Apple audio container used by macOS and iOS apps.

Extension
.caf
Full name
Core Audio Format
Type
Audio
MIME type
audio/x-caf
Developed by
Apple (2005)

About CAF Files

CAF is Apple's flexible audio container. It can hold almost any audio codec, including uncompressed audio, AAC and Apple Lossless, and has no file size limit, unlike WAV and AIFF, which top out at 4 GB. App developers use CAF for sound effects in iOS apps, and macOS and iOS sometimes produce CAF files for recordings and sounds. Outside Apple software, support is limited.

How to Open a CAF File

Mac
Open it in QuickTime Player, Music or any audio editor.
Windows
Play it in VLC or Audacity.

CAF File Questions

How do I convert CAF to MP3?

On a Mac, open it in an app such as Music or Audacity and export it. Many CAF files also open in VLC, which can convert them.

Why do some CAF files not play in browsers?

Browsers generally don't support the CAF container, even if the audio inside is a supported codec.

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