M4A to AIFF Converter
Convert M4A files to AIFF in seconds, right in your browser. Drop in one file or a whole folder, pick your quality settings and download - nothing is uploaded to a server.
Drop M4A files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert M4A to AIFF
- Click "Choose files" or drag your M4A files onto the page.
- Make sure "AIFF" is selected as the output format.
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your AIFF files.
Why convert M4A to AIFF?
AIFF is uncompressed, so further editing and re-saving won't reduce quality any more. (It can't restore detail that M4A compression already removed.)
AIFF is best for Logic Pro, GarageBand, Final Cut and professional Mac workflows. macOS, iOS, Logic, Pro Tools and most professional audio software.
Will I lose quality?
Converting M4A to AIFF keeps all the quality that is in your M4A file - nothing more is lost. However, it cannot recover detail removed when the M4A was originally created, and the AIFF file will be larger.
M4A vs AIFF
| M4A | AIFF | |
|---|---|---|
| Full name | MPEG-4 Audio (AAC) | Audio Interchange File Format |
| Type | lossy | uncompressed |
| Best for | iPhone, iTunes/Apple Music, YouTube uploads and efficient music storage | Logic Pro, GarageBand, Final Cut and professional Mac workflows |
| Typical size | ~1.4 MB at 192 kbps per minute | ~10 MB at 16-bit / 44.1 kHz per minute |
| Compatibility | Excellent on Apple devices, Android, Windows, browsers and most modern players. | macOS, iOS, Logic, Pro Tools and most professional audio software. |
| Developed by | MPEG / Apple (2001) | Apple (1988) |
M4A to AIFF: questions
How do I convert M4A to AIFF?
Open this page, add your M4A file, make sure AIFF is selected as the output format and click Convert. Your AIFF file is ready to download in seconds.
Will converting M4A to AIFF lose quality?
Converting M4A to AIFF keeps all the quality that is in your M4A file - nothing more is lost. However, it cannot recover detail removed when the M4A was originally created, and the AIFF file will be larger.
Is this M4A to AIFF converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many M4A files to AIFF at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between M4A and AIFF?
M4A (MPEG-4 Audio (AAC)) is a compressed (lossy) format, aAC audio in an MPEG-4 container. Better quality than MP3 at the same bitrate and the native format of Apple Music and iTunes. AIFF (Audio Interchange File Format) is a uncompressed format: apple's uncompressed audio format - the Mac equivalent of WAV with full metadata support.
Does it work on Mac, Windows, iPhone and Android?
Yes. The M4A to AIFF converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.