Convert AIFF to M4A
Free and instant — your AIFF files are processed securely on our servers and deleted right after conversion. Nothing is stored.
How to convert AIFF to M4A
- Step 01
Add your AIFF files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
Your file is sent to our servers, converted and deleted right away — no sign-up, no queue, no waiting.
- Step 03
Download your M4A files
Save each file individually or grab them all at once. Done.
Why convert AIFF to M4A?
Converting your AIFF to M4A shrinks the file dramatically for easier sharing and storage, while keeping sound quality that's excellent for everyday listening.
AIFF vs M4A at a glance
AIFF is Apple's uncompressed audio format — the Mac equivalent of WAV, lossless and studio-standard but with much less support outside professional audio software. M4A is AAC audio in an MPEG-4 container — the format used by iTunes and Apple Music, same quality as AAC with slightly better metadata support.
| Property | AIFF | M4A |
|---|---|---|
| Extension | .aiff, .aif | .m4a |
| Full name | Audio Interchange File Format | MPEG-4 Audio |
| First released | 1988 | 2001 |
| Developed by | Apple | Apple / ISO |
| Compression | Lossless | Lossy |
| Transparency | No | No |
| Animation | No | No |
| Best for | professional audio production and archiving on macOS | music purchased or downloaded from Apple services |
AIFF to M4A — frequently asked questions
Is this AIFF to M4A converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Will I lose quality converting to M4A?
M4A uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.
Is the conversion private?
Audio conversion runs on our servers with ffmpeg — your file is deleted immediately and never stored.
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Need the reverse? Convert M4A to AIFFExplore the M4A converter