Convert AIFF to AAC
Turn big uncompressed AIFF files from Logic or Pro Tools into small AAC copies that still sound great. Everything stays in your browser, so nothing is uploaded.
Why convert AIFF to AAC?
AIFF is the uncompressed format many Mac DAWs and sample libraries use, so the files are large and awkward to share or stream. AAC shrinks them dramatically and plays natively on Apple devices and most modern players. Convert when you want to send a mix for review, load tracks onto a phone, or deliver to a platform that asks for AAC. Keep the AIFF as your master.
Quality and file size
AIFF is lossless, so this is one clean lossy encode, which gives AAC the best possible starting point. At 256 kbps the result is transparent for most listeners on most material, and AAC tends to outperform MP3 at the same bitrate. The file will be a small fraction of the AIFF's size. Use the AAC for listening and sharing, and return to the AIFF for any further editing or future conversions.
AIFF to AAC: common questions
Is AAC a good format for sharing a mix?
Yes. At 256 or 320 kbps it sounds excellent, plays on almost any device, and keeps file sizes small enough to email or message. Keep your AIFF for mastering and archiving.
Is my file uploaded anywhere?
No. The conversion runs entirely in your browser with FFmpeg compiled to WebAssembly. Your file never leaves your device, and we never see it, store it, or train on it.
What is the difference between AIFF and AAC?
AIFF is uncompressed and lossless, so it is large and keeps every detail. AAC is a lossy compressed format that is far smaller while staying close to the original. One is for production, the other for listening and delivery.
Should I pick AAC or M4A?
M4A in almost every case, since it wraps the same AAC audio with tags and artwork. Choose raw .aac only when a specific workflow or device requests it.
Who makes this?
We're the small team behind Xport Studio, a private, fully offline app for AI vocals, stems, and mastering. These free tools are side experiments we wanted to share. No upsell, but if you're curious about the bigger thing, take a look.