How to convert AIFF to MP3
- 1
Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
- 2
Convert AIFF to MP3
NexMedia converts AIFF to MP3 on its own servers. Processing time depends on the file size and how busy the queue is.
- 3
Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About AIFF
AIFF (Audio Interchange File Format) was developed by Apple in 1988 on the basis of the Electronic Arts IFF format, and it normally stores uncompressed PCM audio in big-endian byte order.
Professional audio on the Mac: Logic Pro and GarageBand projects, sample libraries and CD-quality masters.
AIFF files are as large as WAV files, about 10 MB per minute of CD-quality stereo, and some Windows programs handle them less readily than WAV.
Convert AIFF to MP3 online free, no account required — MP3 is a universally supported lossy audio format.
Change AIFF to MP3 without losing quality — convert AIFF to MP3 free in your browser.
Why is my AIFF file so large? Like WAV, it stores every sample uncompressed, so switching to a compressed format is the only way to shrink it — lossless ALAC keeps every detail, MP3 trades some quality for size.
About MP3
MP3 (MPEG-1 Audio Layer III) is a lossy audio format from the early 1990s. It removes the sound listeners are least likely to notice, typically at 128 to 320 kbit/s.
It plays on virtually every device and app, which makes it the default for music files, podcasts and audiobooks.
MP3 tops out at 320 kbit/s and two channels, and every re-encode removes a little more detail.
Why convert music to MP3? Every device, car stereo and app made in the last 25 years plays it, so nothing and nobody is left out.
What changes when you convert AIFF to MP3
- The audio is decoded and re-encoded as MP3 at the default settings, so the result is close to the AIFF but not bit-identical.
- MP3 uses lossy compression: the encoder discards the detail that is least noticeable, so the file is smaller than the AIFF but cannot be turned back into the original.
Settings you can change
Before you convert AIFF to MP3, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted MP3 file is kept for 2 hours, then deleted.
AIFF to MP3: questions and answers
Does converting AIFF to MP3 reduce quality?
The audio is decoded and re-encoded as MP3 at the default settings, so the result is close to the AIFF but not bit-identical. MP3 uses lossy compression: the encoder discards the detail that is least noticeable, so the file is smaller than the AIFF but cannot be turned back into the original.
What is the difference between AIFF and MP3?
AIFF is Apple's uncompressed audio format. MP3 is a universally supported lossy audio format.
Can I change the settings when converting AIFF to MP3?
Before you convert AIFF to MP3, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Do I need an account to convert AIFF to MP3?
No. You can convert AIFF to MP3 without an account; signing in raises the file-size and daily limits.
How long is my converted MP3 file kept?
The MP3 file you convert from AIFF is kept for 2 hours, then deleted automatically.
Will the MP3 file be smaller than my AIFF?
MP3 uses lossy compression: the encoder discards the detail that is least noticeable, so the file is smaller than the AIFF but cannot be turned back into the original.
When I convert AIFF to MP3, is the audio re-encoded?
The audio is decoded and re-encoded as MP3 at the default settings, so the result is close to the AIFF but not bit-identical.