CAF Converter
Convert files to and from CAF online for free. Fast, secure, and high-quality file conversion with no sign-up or software required.
Maximum file size is 1GB
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What is a CAF file?
The Core Audio Format (CAF) is a container designed by Apple Inc. to overcome the 4 GB size limitation of legacy formats like AIFF and WAV. Introduced with Mac OS X 10.4, it uses 64-bit file offsets, allowing for massive data storage suitable for long-duration, high-resolution multi-channel recordings. The format is a wrapper that can contain various audio data types, including Linear PCM, Apple Lossless (ALAC), and AAC, organized into a chunk-based structure comprising a header, audio data chunk, and optional metadata chunks such as packet tables.
How to open a CAF file
CAF is natively supported within the Apple ecosystem, including macOS (QuickTime Player, Logic Pro, GarageBand) and iOS devices. On Windows and Linux, native support is nonexistent; users must rely on the VLC media player or Audacity (with FFmpeg libraries) to decode the container. Specialized audio engineering software such as GoldWave or Adobe Audition also handles CAF inputs.
CAF Technical Info
- Full Name
- Core Audio Format
- Developed By
- Apple Inc.
- Initial Release
- 2005
- MIME Type
- audio/x-caf
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