Convert AIFF to M4A Online
Need to convert AIFF to M4A right now? Drop your file and get results in seconds. Everything runs in your browser. Your audio never leaves your device.
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AIFF (.aiff) · Max 20 MB
AudioUtils converts AIFF to M4A using WebAssembly. The entire process happens locally. No upload, no server, no waiting in a queue.
Open any browser. Pick your file. Click convert. The M4A file downloads instantly. Works on any device with a modern browser.
AIFF is lossless. Converting to M4A reduces file size at the cost of some audio data. Use a high bitrate to minimize loss. Free tier handles input files up to 20MB file size limit with a 10-second preview output. Upgrade to Pro for unlimited, full-length conversions up to 500MB file size limit.
Frequently Asked Questions
How much smaller will the M4A be compared to AIFF?
About 85-90% smaller. A 50MB AIFF file typically becomes 5-7MB as M4A at 256kbps.
Will I lose audio quality?
AAC is a lossy codec, so some compression happens. At 256kbps, the difference from the AIFF original is nearly imperceptible in normal listening.
Can I play M4A on non-Apple devices?
Yes. Android supports M4A natively, and most modern media players handle it fine.
About AIFF
Apple's uncompressed format. Similar to WAV but with better metadata support. Used in professional Mac audio workflows.
About M4A
Apple's preferred audio format. Better quality than MP3 at same bitrate. Default for iTunes and Apple devices.