CAF to AIFF Converter
Convert CAF files to AIFF format online for free. No installation or registration required.
Quick Answer: How to Convert CAF to AIFF
CAF is Apple's Core Audio Format, a modern container without the 4 GB ceiling of older formats. AIFF is Apple's uncompressed audio format, the Mac-side counterpart to WAV. Converting between them re-encodes the media with AIFF's compression model, so output quality depends on the settings you pick in the converter. Run it free at practicalwebtools.com/convert/audio/caf-to-aiff: drop in your CAF, adjust settings if you like, and download the AIFF — no signup, no upload, everything stays on your device.
CAF vs AIFF: Which One and Why
CAF is Apple's Core Audio Format, a modern container without the 4 GB ceiling of older formats, introduced by Apple in 2005 with Core Audio. AIFF is Apple's uncompressed audio format, the Mac-side counterpart to WAV, designed by Apple in 1988 from Electronic Arts' IFF standard. People reach for CAF mainly for iOS/macOS system sounds, Logic Pro and Final Cut intermediates, while AIFF is the usual choice for professional music production on macOS, DJ software libraries, sample packs. CAF's headline strength: no practical file-size limit. AIFF's: bit-perfect quality. On the other side of the ledger, CAF limitation: little support outside the Apple ecosystem — and AIFF limitation: same huge file sizes as WAV.
How to Convert CAF to AIFF Online
- 1
Add your CAF file: Drag and drop it into the converter, or click to browse. CAF files up to the size limit are accepted, and nothing is uploaded — processing runs locally in your browser.
- 2
Set AIFF options: Pick your quality: the converter exposes the settings that matter for AIFF. Higher bitrates preserve more of the CAF's detail at larger file sizes.
- 3
Download the AIFF: Conversion runs on your device. When it completes, download the AIFF file — repeat for as many files as you need, free and unlimited.
Key Facts
- CAF: introduced by Apple in 2005 with Core Audio, container — holds PCM, AAC, ALAC, MP3, or any Core Audio codec.
- AIFF: designed by Apple in 1988 from Electronic Arts' IFF standard, uncompressed PCM — same size as WAV at equal settings.
- CAF strength: no practical file-size limit.
- AIFF strength: bit-perfect quality.
- CAF limitation to know: little support outside the Apple ecosystem.
- AIFF limitation to know: same huge file sizes as WAV.
- Under the hood: AIFF-C (compressed AIFF, the .aifc extension) can hold IMA/SDX2 codecs — rare today, but why some .aifc files are far smaller than expected
Format Background
CAF
CAF — introduced by Apple in 2005 with Core Audio. CAF is one of the few formats that can store audio chunks out of order — useful for editing apps that append data while recording
AIFF
AIFF — designed by Apple in 1988 from Electronic Arts' IFF standard. AIFF-C (compressed AIFF, the .aifc extension) can hold IMA/SDX2 codecs — rare today, but why some .aifc files are far smaller than expected
Frequently Asked Questions
Will converting CAF to AIFF lose quality?
It depends on the formats: CAF is container — holds PCM, AAC, ALAC, MP3, or any Core Audio codec and AIFF is uncompressed PCM — same size as WAV at equal settings. Any step from a lossless source into AIFF keeps everything; any lossy step re-encodes and discards some data.
Are my files uploaded anywhere during CAF → AIFF conversion?
No. This converter runs on WebAssembly inside your browser — your CAF file is read from disk, processed by your device's CPU, and the AIFF is written back locally. There is no server upload at any point, which also means no size-based throttling or waiting in queue.
What devices and apps play AIFF files?
Logic Pro, Ableton, Native Instruments, macOS Core Audio. Same huge file sizes as WAV — worth knowing before you standardize on it.
Can I convert several CAF files at once?
Yes — the converter processes a queue of files in one session, each entirely on your device. Batch mode is handy when moving a library into AIFF; just remember each file re-encodes independently, so set your quality once and it applies to all.
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Further reading
Guides and explainers on the Practical Web Tools blog cover audio and video formats in depth — or browse every audio converters pair from the hub.