Convert AIFF to AAC Online
AIFF files are apple's uncompressed PCM format, the macOS equivalent of WAV. Converting to AAC gives you streaming, mobile audio, iTunes/Apple Music.
How to convert AIFF to AAC
- Upload your AIFF file. Drag it onto the box above or click to browse. Files up to 200 MB are accepted.
- Choose AAC as the output. The target format is pre-selected on this page — just press “Convert now”.
- Download the result. Conversion runs on our own server and the download starts as soon as it is ready. Your files are deleted automatically.
Why convert AIFF to AAC?
Converting AIFF to AAC is usually about reach: AAC works well for streaming, mobile audio, iTunes/Apple Music, while AIFF is more at home in Mac audio editing, mastering.
AIFF vs AAC: key differences
| AIFF | AAC | |
|---|---|---|
| File type | uncompressed | lossy |
| Typical use | Mac audio editing, mastering | streaming, mobile audio, iTunes/Apple Music |
| Compatibility | Lossless and universal on Apple/Pro Tools workflows; large files. | Excellent support across phones, browsers and streaming platforms. |
Tips for a clean AIFF to AAC conversion
- Lossless and universal on Apple/Pro Tools workflows; large files.
- Use the highest-quality source AIFF you have — converting a compressed file again cannot restore lost detail.
- If you only need a smaller file, try a lower resolution or bitrate instead of a different format.
- Keep the original AIFF until you have checked the converted AAC opens the way you expect.
Frequently asked questions
How do I convert AIFF to AAC?
Upload your AIFF file to the converter on this page, make sure AAC is selected as the output format and click “Convert now”. When the conversion finishes the download starts automatically.
Is this AIFF to AAC converter free?
Yes — it is completely free and needs no account. Files up to 200 MB are accepted, and heavy use is rate-limited so the service stays available for everyone.
Will converting AIFF to AAC reduce quality?
AAC uses lossy compression, so the converted file is re-encoded. Quality loss is minimal at sensible settings, but keep the original AIFF if you may need to convert again later.
What is a AIFF file?
AIFF is apple's uncompressed PCM format, the macOS equivalent of WAV. Its technical name is Audio Interchange File Format and it is typically used for Mac audio editing, mastering.
What is a AAC file?
AAC is the modern successor to MP3, delivering better quality at the same bitrate. Its technical name is Advanced Audio Coding and it is typically used for streaming, mobile audio, iTunes/Apple Music.
Can I convert AIFF to AAC on my phone?
Yes. The converter runs in the browser on Android, iOS, Windows, macOS and Linux — no app installation is required.
Are my files kept on the server?
No. Uploaded files and converted results are deleted automatically a short time after the conversion finishes.