High Quality AIFF to MP3
Get the highest quality MP3 from your AIFF files. AudioUtils uses optimized encoder settings tuned for fidelity, not just speed.
Drop your AIFF file here or click to browse
AIFF (.aiff) · Max 20 MB
The converter defaults to the highest practical bitrate for MP3. For lossy output, that means 320kbps or VBR quality 0. Transparent quality for virtually all listeners.
Garbage in, garbage out. The output quality depends on your source. A 128kbps AIFF file won't sound better in MP3. Start with the best source available.
AudioUtils processes everything locally using WebAssembly. The encoder runs at near-native speed. A 10-minute file converts in seconds with maximum quality settings.
Frequently Asked Questions
What is AIFF?
Audio Interchange File Format. Apple's version of WAV. It stores uncompressed audio with support for metadata and album art. Common in Mac audio production.
How much smaller will the MP3 be?
About 80% smaller. A 40MB AIFF file becomes roughly 7-8MB as a 320kbps MP3.
Should I use AIFF or WAV for production?
Either works. AIFF has slightly better metadata support on Mac. WAV is more universal. Both are uncompressed with identical audio quality.
Is AIFF the same as Apple Lossless (ALAC)?
No. AIFF is uncompressed (like WAV). ALAC is lossless compressed (like FLAC). ALAC files are smaller but both preserve full quality.
About AIFF
Apple's uncompressed format. Similar to WAV but with better metadata support. Used in professional Mac audio workflows.
About MP3
The most widely used audio format. Great compatibility, small file size. Ideal for music, podcasts, and general use.