Convert AIFF to MP3 Online — Free AIFF to MP3 Converter
Convert uncompressed AIFF audio to MP3. Reduce file size by 90%. Free, preserves quality at high bitrates.
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
Reset to defaults
Need help?How to Convert AIFF to MP3 Online
- Upload Your AIFF Files: Click "+ Add Files" to select AIFF files from your computer, Google Drive, or Dropbox. Batch upload supported.
- Choose MP3 Bitrate: Select target bitrate in Advanced Options — 320kbps for maximum quality, 192kbps for a good balance.
- Convert and Download: Click "Convert" and download your MP3 files.
Why Convert AIFF to MP3?
Dramatically Smaller Files
AIFF is uncompressed — a 4-minute song is about 40MB. The same song as a 320kbps MP3 is about 8MB. An 80% reduction.
Universal Compatibility
AIFF is primarily used on Mac for audio production. MP3 plays on every device — phones, car stereos, MP3 players, and all platforms.
Share and Upload
AIFF files are too large for email and impractical for sharing. MP3 is the universal format for music distribution.
AIFF vs MP3
| AIFF | MP3 | |
|---|---|---|
| Compression | Uncompressed | Lossy |
| File size (4-min song) | ~40 MB | ~8 MB at 320kbps |
| Quality | Perfect (CD quality) | Near-transparent at 320kbps |
| Primary use | Mac audio production | Universal playback |
Frequently Asked Questions
Does converting AIFF to MP3 lose quality?
Yes — MP3 is lossy. At 256-320kbps, the difference is imperceptible to most listeners. Keep AIFF originals as lossless masters.
Can I convert multiple files at once?
Yes. Upload multiple AIFF files and convert them all.
Is it free?
Yes. Completely free with no watermarks, no sign-up required, and no file count limits.
Does it work on mobile?
Yes. Works in any modern browser on all devices — no app installation required.