CAFAU

Convert CAF to AU

Free, fast and private. Your CAF files are converted right in your browser — nothing is uploaded.

  • Runs in your browser
  • No watermark
  • Batch & ZIP download

How to convert CAF to AU

  1. 1

    Add your CAF files

    Drag and drop CAF files onto the converter, paste them, or click to browse. You can add several at once.

  2. 2

    Choose AU

    AU is already selected. Open Options if you want to change quality, size or metadata.

  3. 3

    Convert

    Click Convert. Your files are converted right in your browser in seconds.

  4. 4

    Download your AU

    Download each AU file, or everything at once as a ZIP.

CAF vs AU

From

CAF · Core Audio Format

CAF is Apple's Core Audio container, used for iOS sound effects and ringtones without size limits.

Type
Audio
Extension
.caf
MIME
audio/x-caf
Best for
audio assets for iOS and macOS apps
All CAF conversions →

To

AU · Sun Audio

AU is a simple audio format introduced by Sun Microsystems, common on early Unix systems and Java.

Type
Audio
Extension
.au
MIME
audio/basic
Best for
legacy Unix and Java applications
Legacy format
All AU conversions →

Related conversions

CAF to AU: frequently asked questions

Free, private and in your browser

Convert CAF to AU in seconds.

No sign-up, no watermarks, no waiting in line. Drop a file and get it back in the format you need.

  • Most conversions never leave your device
  • Cloud files deleted automatically
  • No watermarks