Is my audio file uploaded anywhere?

No. The tool reads only the filename and file size using the browser File API — no data leaves your device. The FFmpeg command is generated entirely in your browser.

AIFF (Audio Interchange File Format) is an uncompressed audio format developed by Apple. It delivers CD-quality sound but results in large file sizes compared to compressed formats like MP3.

Which bitrate should I choose?

128 kbps is good for voice or casual listening. 192 kbps is a balanced choice for music. 320 kbps is the highest standard MP3 quality and is recommended for music archival.

Do I need FFmpeg installed?

Yes. FFmpeg is a free, open-source tool available on Windows, macOS, and Linux. Install it from ffmpeg.org, then paste the generated command in your terminal.

Can I convert .aif files too?

Yes. Both .aiff and .aif are the same format. FFmpeg handles both extensions automatically — just select or type in either file extension.

AIFF to MP3 Converter

Name: AIFF to MP3 Converter
Availability: InStock
Author: Nham Vu

Drop or select an AIFF file to inspect its details, then copy the FFmpeg command to convert it to MP3.

Drop your AIFF file here, or browse

.aiff and .aif files — nothing is uploaded

Conversion Options

Output Bitrate

128 kbps (voice / casual) 192 kbps (balanced) 320 kbps (high quality)

Output Filename

Or Type a Filename Manually

Use this if you already know the filename and do not want to select a file.

FFmpeg Command

ffmpeg -i "input.aiff" -codec:a libmp3lame -b:a 192k "output.mp3"

Batch Convert (Linux / macOS)

for f in *.aiff; do
  ffmpeg -i "$f" -codec:a libmp3lame -b:a 192k "${f%.aiff}.mp3"
done

Batch Convert (Windows CMD)

for %f in (*.aiff) do ffmpeg -i "%f" -codec:a libmp3lame -b:a 192k "%~nf.mp3"

Summary

Drop or select an AIFF file to inspect its details, then copy the FFmpeg command to convert it to MP3.

How it works

Select or drag-and-drop your AIFF file into the drop zone.
The tool reads the filename and size locally — nothing is uploaded.
Choose your target MP3 bitrate (128, 192, or 320 kbps).
Click "Copy Command" to copy the FFmpeg command to your clipboard.
Paste the command in your terminal and run it to convert the file.

Use cases

Convert studio AIFF recordings to MP3 for streaming or distribution.
Reduce file size before uploading tracks to SoundCloud or Spotify.
Batch-convert multiple AIFF files using the same FFmpeg pattern.
Share audio with collaborators who need a smaller, widely supported format.
Archive large AIFF masters while keeping compressed MP3 copies for everyday use.
Convert macOS GarageBand exports from AIFF to MP3 quickly.

Frequently Asked Questions

Last updated: 2026-07-01 · Reviewed by Nham Vu