CAF to AAC Converter

Convert CAF to AAC Online

A CAF (Core Audio Format) file is Apple's audio container — handy inside Logic Pro, GarageBand, and iOS ringtone work, but awkward to play almost anywhere else. Converting to AAC re-encodes the sound into a compact, lossy stream that phones, browsers, cars, and media players all read natively, while keeping the file small. If the CAF holds uncompressed PCM (the usual output from a DAW), the AAC result is a clean first-generation encode — a large size drop with no audible loss at sensible bitrates.

How to Convert CAF to AAC

1. Upload Your CAF File: Drag and drop your .caf onto the page or click "+ Add Files" to select it from your computer.
2. Set the Quality Preset: Open Advanced Options and pick a Quality Preset — "Very High (Recommended)" is the default and a good match for music. For finer control, switch to Custom Bitrate, Constant Bitrate, or Variable Bitrate.
3. Adjust Audio Channel, Sample Rate, or Trim (Optional): Leave Audio Channel and Audio Sample Rate on "Original" to keep the source layout, or change them; use Trim to export only part of the recording.
4. Convert and Download: Click "Convert" and download your AAC file. No sign-up, no watermark.

CAF vs AAC at a Glance

Frequently Asked Questions

Will I lose quality converting CAF to AAC?

It depends on what the CAF holds. Most CAF files from a DAW store uncompressed Linear PCM, so encoding to AAC is a first-generation lossy pass — at 192-256 kbps it is transparent to most listeners while shrinking the file dramatically. If your CAF already contains lossy audio (AAC or IMA4), you are re-encoding lossy to lossy: match or exceed the original bitrate to limit further loss, but the quality already discarded cannot be recovered.

Why convert CAF to AAC instead of leaving it as CAF?

CAF is an Apple-centric container — Logic Pro, GarageBand, and iOS read it, but it barely opens on Windows or Android and most music players and websites reject it. AAC is the opposite: it plays natively across iPhone and Android, every major browser, car stereos, game consoles, and apps like VLC, Spotify, and Apple Music. Converting makes the same sound portable everywhere.

What bitrate should I pick for AAC?

For music, 192-256 kbps AAC is a safe transparent range for most ears. For speech, podcasts, or voice memos, 96-128 kbps keeps files tiny with no meaningful loss. In our testing, a one-minute stereo PCM .caf re-encoded to 256 kbps AAC produced a file under 2 MB — a large drop from the multi-megabyte uncompressed source, with no audible difference on headphones.

Should I use AAC or M4A?

They carry the same audio. A raw .aac file is the bare AAC bitstream, while .m4a wraps that AAC inside an MP4 container, which is friendlier for tags (title, artist, artwork) and is what iTunes and Apple Music expect. If you want metadata and broad music-app compatibility, use CAF to M4A; for a plain stream this AAC output is fine. For an uncompressed copy instead, see CAF to WAV, or use CAF to MP3 for the most universally accepted lossy format.

How long do you keep my uploaded files?

Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion. There is no sign-up and no watermark, and your files are never shared or made public.