Convert AIFF to AAC
Free, fast and secure — convert AIFF to AAC right in your browser.
AIFF
AAC
Shrink your AIFF by converting to AAC
Converting AIFF to AAC trades a little detail for a much smaller file, making AAC audio the practical choice for fast web pages, email and sharing.
How to convert AIFF to AAC
- 1 Drop your AIFF file into the converter above.
- 2 It is converted to AAC automatically — no settings to fiddle with.
- 3 Download your new AAC file instantly.
AIFF vs AAC
| Feature | AIFF | AAC |
|---|---|---|
| Compression | Lossless | Lossy |
| MIME type | audio/aiff | audio/aac |
| Best for | Recording and editing on Mac — converted to MP3 or M4A to share. | Streaming and modern playback where quality-per-byte beats raw compatibility. |
About the formats
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.
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.
Frequently asked questions
Upload your AIFF file above and it is converted to AAC automatically. When it is ready, download your new AAC audio — the whole thing takes just a few seconds in your browser.
Converting AIFF to AAC trades a little detail for a much smaller file, making AAC audio the practical choice for fast web pages, email and sharing.
Because AAC uses lossy compression, very fine detail may be reduced to save space. For everyday use the difference is hard to spot, and you get a much smaller file in return.
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.