Convert AAC to AIFF
Convert AAC to AIFF on your device. Choose your file, convert, and check the result before sharing.
Drop the aac file
Drag your AAC onto the page or click to browse. It is read locally, never sent anywhere.
Choose AIFF
AIFF output is always 16-bit PCM, so there is no quality or bitrate menu. Click Convert to start processing in this tab.
Save the aiff
The finished AIFF downloads straight back to your device. Nothing touched a server on the way.
Why convert here, not there
No upload, ever
Audio files are personal. AAC to AIFF here happens inside one browser tab, end to end.
Local conversion
Conversion runs locally after you click Convert. The first audio or video conversion may need to download the converter engine.
No account, no daily cap
No account or daily conversion quota. The per-file cap is 2 GB, and available device memory can impose a lower practical limit.
The two formats, briefly
| AAC | AAC is a lossy audio codec. This page writes a standalone AAC file using the selected bitrate. | |
|---|---|---|
| AIFF | AIFF is an audio container. This converter writes 16-bit PCM audio; a higher-bit-depth source can lose precision. | |
When you need this
- Decode AAC for an editor or workflow that asks for AIFF PCM audio. This output is 16-bit, not an enhancement of the original recording, and can be much larger than compressed audio.
AAC vs AIFF: what changes
| AAC | AIFF | |
|---|---|---|
| Kind | Audio | Audio |
| Compression | Lossy AAC audio | 16-bit PCM output here |
| Typical size | Depends on the file and encoding settings. | Measure the exported file; it may be larger. |
| Opens on | Check the source in your app and browser. | Check the downloaded file in the receiving app. |
| Best for | Keep the original as your source. | AIFF workflows, subject to the limits below. |
Keep the original. Compare the exported file before sharing or replacing it.
Good to know
- AIFF output here is 16-bit PCM. There is no bitrate choice; converting a higher-bit-depth source can reduce precision.
- First use downloads the audio/video engine (about 30 MB). The input cap is 2 GB, but available browser memory can run out below that.