Convert M4A to AIFF
Convert M4A to AIFF on your device. Choose your file, convert, and check the result before sharing.
Drop the m4a file
Drag your M4A 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
Your m4a file is decoded and re-encoded by code in this tab - a song, a memo, a podcast never leaves the device.
Local conversion
No upload time for a big m4a file, no server queue, no waiting on a download link.
No account, no daily cap
No daily caps, no "3 conversions left", no email wall. Convert the whole m4a library.
The two formats, briefly
| M4A | M4A is an audio container. This converter writes AAC audio inside M4A, not Apple Lossless. | |
|---|---|---|
| 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 M4A 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.
M4A vs AIFF: what changes
| M4A | AIFF | |
|---|---|---|
| Kind | Audio | Audio |
| Compression | AAC audio output here | 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.