CAF Converter

Convert CAF (Apple Core Audio Format) files online, for free, with nothing to install.

CAF (Core Audio Format) is Apple's audio container: it holds any audio codec and files over 4 GB, and Apple's system sounds use it. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost. CAF files can be saved as AAC, AIFF, FLAC, M4A, MP3, WAV, WMA, on our server.

What is a CAF file?

CAF – Apple Core Audio Format. CAF (Core Audio Format) is Apple's audio container: it holds any audio codec and files over 4 GB, and Apple's system sounds use it. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost.

How to convert a CAF file

  1. Click Select File, or drop your .caf files anywhere on this page.
  2. Pick the format you want next to each file, for example AAC.
  3. Click Convert, then Download when it's done.

CAF at a glance

CAF
LayoutA stream of sound
EditableIn audio editors
Created byApple, 2005
Best forMac and iOS audio work

Frequently asked questions

What is a CAF file?

CAF (Core Audio Format) is Apple's audio container: it holds any audio codec and files over 4 GB, and Apple's system sounds use it. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost.

How do I open a CAF file?

Most media players open CAF files: VLC plays almost every audio format, and the player on your phone or computer handles the common ones. To read it anywhere, convert it to MP3 here.

Is converting CAF files free?

Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.

Are my CAF files uploaded anywhere?

This conversion runs on our server, because converting audio needs ffmpeg, which does not run in a browser. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion. The server has no internet access while it works on your file.

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