Convert AAC to AIFF
Free, fast and secure — convert AAC to AIFF right in your browser.
AAC
AIFF
Move your AAC into a lossless AIFF
Converting AAC to AIFF lifts your file into a format that keeps every detail intact — ready for editing, archiving or high-quality output.
How to convert AAC to AIFF
- 1 Drop your AAC file into the converter above.
- 2 It is converted to AIFF automatically — no settings to fiddle with.
- 3 Download your new AIFF file instantly.
AAC vs AIFF
| Feature | AAC | AIFF |
|---|---|---|
| Compression | Lossy | Lossless |
| MIME type | audio/aac | audio/aiff |
| Best for | Streaming and modern playback where quality-per-byte beats raw compatibility. | Recording and editing on Mac — converted to MP3 or M4A to share. |
About the formats
AAC
AAC audio
AAC is the successor to MP3, offering better sound at the same bitrate. It is the standard for streaming services, YouTube and Apple devices.
Strengths
- Better quality than MP3 at equal size
- Standard for streaming platforms
- Wide modern-device support
Limitations
- Lossy compression
- Slightly less universal than MP3
- No lossless mode
Best for: Streaming and modern playback where quality-per-byte beats raw compatibility.
AIFF
AIFF audio
AIFF is Apple’s uncompressed, lossless audio format — the Mac counterpart to WAV. It stores studio-grade sound with no quality loss, in large files.
Strengths
- Lossless, studio quality
- Native to macOS
- Ideal for editing
Limitations
- Very large files
- Impractical for streaming
- Overkill for casual listening
Best for: Recording and editing on Mac — converted to MP3 or M4A to share.
Frequently asked questions
Upload your AAC file above and it is converted to AIFF automatically. When it is ready, download your new AIFF audio — the whole thing takes just a few seconds in your browser.
Converting AAC to AIFF lifts your file into a format that keeps every detail intact — ready for editing, archiving or high-quality output.
AIFF is a lossless format, so your converted file keeps its full quality with no degradation.
Yes. The converter is free to use, with no watermark and no sign-up required.
Your files are processed securely and are never shared with anyone.