Convert AIFF to MP3
Free AIFF to MP3 converter that runs entirely in your browser. No uploads, no signup required.
Drop AIFF files here
or browse your device. Free, no signup required, no watermarks.
Files are processed on your device, never uploaded
Media conversions run on a full FFmpeg engine compiled to WebAssembly. The engine (~31 MB) downloads once on your first conversion, then everything runs locally.
Three steps
How to convert AIFF to MP3
Add your files
Drop AIFF files into the box above, or click it to browse. Add several to batch convert.
Convert
MP3 is already selected as the output. Hit Convert. Your browser does the work locally.
Download
Save each converted MP3 file. Pro ZIPs whole batches in one click.
Audio Interchange File Format
AIFF
AIFF is Apple's uncompressed audio format, the Mac equivalent of WAV, common in music production.
MPEG audio layer III
MP3
MP3 is the universal audio format. It plays on every device, app, and car stereo made in the last 25 years.
Why convert AIFF to MP3?
AIFF is Apple's uncompressed audio format, the Mac equivalent of WAV, common in music production. MP3 is the universal audio format. It plays on every device, app, and car stereo made in the last 25 years. Converting from AIFF to MP3 gets you the best of the target format wherever AIFF falls short, whether that's compatibility, file size, or what your apps and devices can open. With FormatFusion the switch takes seconds and your files stay on your device the whole time.
Questions
AIFF to MP3: common questions
Is this AIFF to MP3 converter free?
Yes. It is completely free with no watermarks and no account required, for files up to 1 GB each. Convert one file or a hundred.
Is it safe to convert AIFF files here?
Safer than any upload-based converter. The conversion runs locally in your browser, so your AIFF files are never sent over the internet and never touch a server.
Will I lose quality converting AIFF to MP3?
MP3 is a lossy format, but we encode at high bitrate (up to 192 kbps), which is transparent for normal listening.
Can I convert multiple AIFF files at once?
Yes. Free converts up to three AIFF files at a time. FormatFusion Pro batches without limits and downloads whole runs as a single ZIP.
Does it work on iPhone and Android?
Yes. FormatFusion runs in any modern mobile or desktop browser. No app install needed.