Tools / File Converter / AAC to CAF Converter

AAC to CAF Converter

Convert AAC files to CAF. Free, without uploading.

This tool converts AAC files to CAF. AAC is the lossy codec designed to succeed MP3; it sounds better than MP3 at the same bitrate.

Apple Core Audio. CAF is lossless, so the audio keeps the quality it has in the AAC file.

Conversion runs on your device; your file is never sent to a server. The components download once on first use, and later conversions start right away.

How to use

1. Choose the AAC file, drag it in, or paste its link.
2. Choose the audio quality; optionally enter a start and end time.
3. Press "Convert" and download the CAF file.

Frequently asked questions

Will audio quality drop when converting to CAF?

No. CAF is lossless.

Is there a file size limit?

No fixed limit; your device’s memory decides. Computers usually handle files up to 1–2 GB.

Is my file uploaded?

No. Your AAC file is converted to CAF inside your browser.