AIFF to WMA Converter
Convert AIFF to WMA free — no upload, no signup
To convert AIFF to WMA, drop your AIFF audio files into the box below and click Convert. Fylo converts with ffmpeg running inside your browser, so nothing is uploaded and there's no signup or watermark. Compress AIFF for old Windows software.
Drop audio files here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
Advanced
How to convert AIFF to WMA
Add your AIFF files
Drag and drop AIFF files into the box or tap to choose them. The converter engine (about 31 MB) downloads once, the first time you convert.
Pick a bitrate
192 kbps suits music and 128 kbps or less suits speech. Sample rate and mono/stereo are under Advanced.
Convert and download
Click Convert, then download each WMA file or all of them as one ZIP.
Why convert AIFF to WMA?
Some older Windows tools expect WMA.
What happens when you convert AIFF to WMA?
Encoded to WMA2 at 192 kbps.
How does Fylo convert AIFF to WMA?
Fylo decodes the PCM audio in the AIFF with ffmpeg compiled to WebAssembly and encodes it with Windows Media Audio 2 (wmav2) at 192 kbps in an ASF container. Going from lossless to lossy is where the big saving happens: a 3-minute song is ≈ 32 MB as AIFF but ≈ 3.6 MB at 160 kbps as WMA. The original sample rate and channel layout are kept unless you change them under Advanced.
What's the difference between AIFF and WMA?
AIFF (Audio Interchange File Format) was created by Apple in 1988, based on Electronic Arts' IFF format. Like WAV it stores uncompressed PCM audio — just with big-endian byte order — so the two contain identical sound data at the same settings.
WMA (Windows Media Audio) was released by Microsoft in 1999 to compete with MP3 and is stored in the ASF container. Windows Media Player ripped CDs to WMA by default for years, so many older music collections are WMA.
Learn more: AIFF format guide · WMA format guide
| Property | AIFF | WMA |
|---|---|---|
| Compression | None (PCM) | Lossy (also Pro/Lossless variants) |
| Typical bitrate | 1,411 kbps (CD quality) | 64–192 kbps |
| 3-minute song | ≈ 32 MB | ≈ 3.6 MB at 160 kbps |
| Tags and cover art | Yes (ID3 chunk) | Yes |
| Compatibility | macOS, iTunes, DAWs; less common on Windows | Windows; poor on Mac, iPhone and browsers |
| Best for | Mac audio editing and music production | Old Windows Media Player libraries |
| Introduced | 1988 | 1999 |
Frequently asked questions
Is MP3 better?
MP3 is more universal.
Size reduction?
About 85%.
Is my AIFF file uploaded to a server?
No. Fylo runs ffmpeg, the same engine used by professional video tools, compiled to WebAssembly inside your browser. Your AIFF file is read directly from your device and never sent anywhere.
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