CAF to FLAC Converter

Convert CAF to FLAC Online

CAF (Apple's Core Audio Format) is convenient inside GarageBand, Logic, and macOS recordings, but many non-Apple apps and players won't open a .caf file at all. Converting to FLAC gives you an open, lossless format that plays natively on Windows 10, Android, macOS, and iOS 11+ — ideal for archiving a Logic bounce or a long field recording in a format anything can read. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark.

How to Convert CAF to FLAC

1. Upload Your CAF File: Drag and drop your .caf file onto the page or click "+ Add Files" to browse. You can queue several files and convert them with the same settings.
2. Set the Compression level: Open Advanced Options and use the Compression level slider (1–12). Higher values squeeze the file smaller and take longer to encode; every level decodes to the exact same audio, so this only trades encode time for size.
3. Adjust Audio Sample Rate or Channel (optional): Leave both on "Original" to keep a true lossless copy. Only change the sample rate or downmix to mono if you specifically need to, since resampling is no longer bit-perfect.
4. Convert and Download: Click "Convert" and download your FLAC file. No sign-up, no watermark.

What FLAC Does With Your CAF Audio

A CAF file is just a container — what FLAC can do depends on the audio inside it. FLAC is always lossless relative to its input, but it can't recover quality that was already discarded.

Frequently Asked Questions

Will I lose any audio quality converting CAF to FLAC?

No. FLAC is a lossless codec, so the decoded waveform is bit-for-bit identical to the audio it was given. If your CAF holds uncompressed LPCM or Apple Lossless (ALAC), the FLAC is a perfect copy. The one thing FLAC cannot do is restore detail that was already thrown away — if the CAF contained lossy AAC, FLAC preserves that exact data but won't make it sound better than the AAC did.

Why convert CAF to FLAC instead of just keeping the CAF?

CAF is largely an Apple-centric format. While it's a capable 64-bit container that escapes the 4 GB ceiling of WAV and AIFF, plenty of non-Apple players and editors on Windows, Android, and Linux can't open .caf directly. FLAC is open, royalty-free, and supported natively in Windows 10, Android, macOS High Sierra, and iOS 11 and later, which makes it a far safer choice for sharing and long-term archiving.

How much smaller will the FLAC file be?

For uncompressed LPCM audio, FLAC typically lands around half the size of the equivalent WAV or AIFF at the same sample rate, though the exact ratio depends on the material — dense, noisy audio compresses less than sparse or quiet recordings. In our testing, a stereo 44.1 kHz LPCM CAF compressed to roughly 55% of its original size at a mid compression level with no change to the audio.

Can FLAC preserve the markers and metadata in my CAF?

Not the CAF-specific extras. CAF can carry text annotations, markers, and chapter data that have no direct equivalent in FLAC, so those are dropped. Standard tags such as title and artist carry over where present, but if your workflow depends on embedded markers, keep the original CAF as your master and treat the FLAC as a distribution or archive copy.

How are my files handled after I convert them?

Your CAF is uploaded over an encrypted connection, converted on our servers, and the file is deleted automatically a few hours after conversion. There's no sign-up, no watermark, and files are never shared or made public. If you'd rather output something more compact for casual sharing, see Convert CAF to MP3; if you need an uncompressed file for a desktop audio editor, Convert CAF to WAV keeps full PCM.