WMA to AIFF Converter
Convert WMA to AIFF free — no upload, no signup
To convert WMA to AIFF, drop your WMA 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. Decode WMA to AIFF for Mac apps.
Drop audio files here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
AIFF is lossless — no bitrate to choose. Sample rate and channels are under Advanced.
Advanced
How to convert WMA to AIFF
Add your WMA files
Drag and drop WMA files into the box or tap to choose them. The converter engine (about 31 MB) downloads once, the first time you convert.
Check the settings
AIFF is lossless, so there's no bitrate to pick. Change sample rate or switch to mono under Advanced if a device needs it.
Convert and download
Click Convert, then download each AIFF file or all of them as one ZIP.
Why convert WMA to AIFF?
Macs can't play WMA natively; AIFF imports everywhere on macOS.
What happens when you convert WMA to AIFF?
Decoded to 16-bit PCM AIFF.
How does Fylo convert WMA to AIFF?
Fylo decodes the WMA audio in the WMA with ffmpeg compiled to WebAssembly and encodes it with 16-bit big-endian PCM with no compression. Nothing is added back: the AIFF is an exact but larger copy of the decoded WMA (≈ 32 MB for a 3-minute song versus ≈ 3.6 MB at 160 kbps). The original sample rate and channel layout are kept unless you change them under Advanced.
What's the difference between WMA and AIFF?
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.
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.
Learn more: WMA format guide · AIFF format guide
| Property | WMA | AIFF |
|---|---|---|
| Compression | Lossy (also Pro/Lossless variants) | None (PCM) |
| Typical bitrate | 64–192 kbps | 1,411 kbps (CD quality) |
| 3-minute song | ≈ 3.6 MB at 160 kbps | ≈ 32 MB |
| Tags and cover art | Yes | Yes (ID3 chunk) |
| Compatibility | Windows; poor on Mac, iPhone and browsers | macOS, iTunes, DAWs; less common on Windows |
| Best for | Old Windows Media Player libraries | Mac audio editing and music production |
| Introduced | 1999 | 1988 |
Frequently asked questions
Does converting WMA to AIFF improve quality?
No. WMA is lossy, so detail removed during its compression can't be restored. The AIFF is a lossless copy of what the WMA sounds like — bigger, but not better.
Smaller option for Mac?
Choose WMA to M4A instead.
Is my WMA file uploaded to a server?
No. Fylo runs ffmpeg, the same engine used by professional video tools, compiled to WebAssembly inside your browser. Your WMA file is read directly from your device and never sent anywhere.
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