MP3 to AIFF Converter
Convert MP3 (MPEG-1 Audio Layer III) files to AIFF format for Apple audio production and professional Mac workflows. Decode lossy MP3 to uncompressed AIFF. Professional-quality audio conversion powered by FFmpeg, all processing happens securely in your browser.
Recommended Settings
For Mac Workflows
- •Native Apple format support
- •No additional quality loss
- •Perfect for Logic Pro and GarageBand
For Professional Use
- •Uncompressed PCM audio
- •Preserves MP3 quality
- •Industry-standard on Mac
Pro Tips
- •AIFF preserves MP3 quality without further loss
- •Files will be significantly larger (uncompressed)
- •Use FLAC for smaller lossless files
Most Popular
Uncompressed AIFF conversion for professional Mac audio workflows
When to Use This Tool
AIFF is Apple's native uncompressed audio format, ideal for Logic Pro, GarageBand, and professional Mac audio workflows.
Recommended: Lossless
Convert MP3 to lossless AIFF for archiving audio files without further compression, preserving current quality.
Recommended: Lossless
AIFF provides uncompressed PCM audio perfect for editing in professional DAWs on Mac and cross-platform software.
Recommended: Lossless
How It Works
Upload your MP3 audio file
FFmpeg decodes MP3 to uncompressed PCM
Download your converted AIFF file
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by FFmpeg.wasm (WebAssembly) for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
What is AIFF format?
AIFF (Audio Interchange File Format) is an uncompressed audio format developed by Apple. It's similar to WAV but uses big-endian byte order and is native to macOS and iOS systems.
Will converting MP3 to AIFF improve quality?
No. MP3 is a lossy format, so the quality is already reduced from the original. Converting to AIFF creates a lossless container but cannot restore lost quality. However, AIFF prevents further quality loss and is ideal for archiving and editing on Mac.
Why are AIFF files so large?
AIFF is uncompressed, storing raw PCM audio data. A 5 MB MP3 file will become approximately 30-50 MB as AIFF. The benefit is no additional quality loss and native Mac compatibility.
What's the difference between AIFF and WAV?
Both are uncompressed PCM formats with identical quality. AIFF is Apple's format (big-endian) while WAV is Microsoft's (little-endian). AIFF is preferred on Mac, while WAV is more common on Windows. Modern software supports both equally.
What software supports AIFF?
AIFF is universally supported on Mac (iTunes, Logic Pro, GarageBand, Final Cut Pro) and most professional DAWs across all platforms including Pro Tools, Ableton Live, and Adobe Audition.