Choose your M4A file
Select M4A from your device. The file is processed locally.
ON YOUR DEVICE
M4A to AIFF
Convert M4A audio to AIFF on your device. Choose settings and download the result.
Drop your file here
One file · Device-dependent capacity · Best for short clips
Files stay on your device
Three simple steps
Prepare AIFF output
AIFF stores uncompressed 16-bit big-endian PCM. Expect larger files than compressed audio.
Save and check your AIFF file
Converting a lossy recording cannot recover lost audio detail. Tags, artwork, chapters and DRM protection are not preserved or bypassed.
Common questions
What changes when I convert M4A to AIFF?
M4A output contains AAC audio in an MPEG-4 container. It does not create Apple Lossless audio. AIFF stores uncompressed 16-bit big-endian PCM. Expect larger files than compressed audio. Converting a lossy recording cannot recover lost audio detail. Tags, artwork, chapters and DRM protection are not preserved or bypassed.
Will the AIFF file be smaller?
Not necessarily. AIFF stores uncompressed 16-bit big-endian PCM. Expect larger files than compressed audio. Size depends on the source and settings. The result reports file sizes and processing time.
Which M4A files work here?
The container must contain decodable media. Encrypted or DRM-protected streams are unsupported. Test a short sample if your recording uses an unusual codec.
Is there a size cap for M4A to AIFF?
There is no fixed file-size quota. Process one main file at a time. Your device memory and browser determine practical capacity. Large selections show a warning that you can continue past.