Convert AAC to AIFF
Free and instant — your AAC files are processed securely on our servers and deleted right after conversion. Nothing is stored.
How to convert AAC to AIFF
- Step 01
Add your AAC files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
Your file is sent to our servers, converted and deleted right away — no sign-up, no queue, no waiting.
- Step 03
Download your AIFF files
Save each file individually or grab them all at once. Done.
Why convert AAC to AIFF?
Need your AAC in AIFF? Converting wraps the existing audio into AIFF — it won't restore detail AAC's compression already discarded, but the file will work anywhere AIFF is expected.
AAC vs AIFF at a glance
AAC is the successor to MP3 — better quality at the same bit rate, used by Apple Music, YouTube and most streaming platforms. AIFF is Apple's uncompressed audio format — the Mac equivalent of WAV, lossless and studio-standard but with much less support outside professional audio software.
| Property | AAC | AIFF |
|---|---|---|
| Extension | .aac, .m4a | .aiff, .aif |
| Full name | Advanced Audio Coding | Audio Interchange File Format |
| First released | 1997 | 1988 |
| Developed by | ISO/IEC JTC 1 | Apple |
| Compression | Lossy | Lossless |
| Transparency | No | No |
| Animation | No | No |
| Best for | music on Apple devices, streaming platforms and YouTube | professional audio production and archiving on macOS |
AAC to AIFF — frequently asked questions
Is this AAC to AIFF converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Will converting AAC to AIFF lose quality?
No. AIFF is a lossless format, so the converted file keeps every pixel exactly as decoded from your AAC.
Is the conversion private?
Audio conversion runs on our servers with ffmpeg — your file is deleted immediately and never stored.
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