Convert AAC to AIFF on Mac
Convert AAC files to AIFF format on your Mac with Jollycat. Modern lossy audio codec with better quality than MP3 at the same bitrate. Default for Apple devices and YouTube. Move from lossy AAC to lossless AIFF to preserve quality in future edits. All processing runs locally on your Mac — no cloud processing and no uploads required for conversion.
AAC vs AIFF
| Property | AAC | AIFF |
|---|---|---|
| Type | lossy | lossless |
| Compression | Perceptual lossy | Uncompressed PCM |
| Container | No | Yes |
| Common Codecs | AAC-LC, HE-AAC | PCM |
| File Extension | .aac | .aif |
| Key Advantage | Better quality than MP3 | Perfect uncompressed quality |
How to Convert AAC to AIFF on Mac
Open your AAC file
Drag and drop your .aac file onto the Jollycat icon in your macOS dock or menu bar. Jollycat instantly detects the format.
Choose AIFF as output
Select AIFF from the conversion options. Adjust quality settings, bitrate, or resolution if needed.
Convert and save
Click Convert and Jollycat processes the file instantly on your Mac. No uploads required, no waiting — everything runs locally on Apple Silicon.
When to Convert AAC to AIFF
AIFF advantages
Perfect uncompressed quality. Mac-native format.
AAC limitations
Less universal than MP3. Patent-encumbered.
Common use cases
Mac audio production, Logic Pro projects, Apple ecosystem audio.
AAC to AIFF Conversion Tips
Higher bitrates produce better audio quality but larger files. For music, 256-320 kbps is recommended. For voice recordings, 128 kbps is sufficient.
AIFF is Apple's equivalent of WAV, storing uncompressed PCM audio with better metadata tagging.
Frequently Asked Questions
Is the AAC to AIFF conversion free?
Jollycat is a one-time purchase for $9.99. Once purchased, you can convert AAC to AIFF and use all 1,650+ conversion paths with no limits.
Does converting AAC to AIFF require an internet connection?
No. Jollycat processes everything locally on your Mac. Your AAC files never leave your device — all conversion happens offline using Apple Silicon.
Can I batch convert multiple AAC files to AIFF?
Yes. Drag multiple AAC files onto Jollycat and convert them all to AIFF at once. Batch processing is built in.
Ready to Convert AAC to AIFF?
Jollycat handles AAC to AIFF conversion and 1,650+ other format conversions. All offline on your Mac.
Get Jollycat for Mac