Best Quality AIFF to MP3 Converter
Looking for the best AIFF to MP3 converter? AudioUtils uses production-grade encoders compiled to WebAssembly. Same engines the pros use, running in your browser.
Drop your AIFF file here or click to browse
AIFF (.aiff) · Max 20 MB
The MP3 encoder in AudioUtils is based on well-tested open-source libraries. It supports CBR and VBR modes with configurable bitrate and quality targets.
Most online converters use server-side FFmpeg with default settings. AudioUtils gives you control over output parameters while keeping the process local and private.
AIFF is lossless. Converting to MP3 reduces file size at the cost of some audio data. Use a high bitrate to minimize loss. For critical work, always A/B test the output against your source to confirm the result meets your standards.
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.