WMA to MP3 Converter
Convert WMA to MP3 free — no upload, no signup
To convert WMA to MP3, 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. Free your old Windows Media Player music for any device.
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 WMA to MP3
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.
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 MP3 file or all of them as one ZIP.
Why convert WMA to MP3?
CDs ripped with Windows Media Player in the 2000s were often saved as WMA, which iPhones, Macs, browsers and many Android apps can't play. MP3 copies play everywhere.
What happens when you convert WMA to MP3?
Fylo decodes the WMA and encodes MP3 at 192 kbps. Copy-protected (DRM) WMA files from old music stores can't be converted.
How does Fylo convert WMA to MP3?
Fylo decodes the WMA audio in the WMA with ffmpeg compiled to WebAssembly and encodes it with the LAME MP3 encoder at 192 kbps (adjustable from 96 to 320 kbps). Both formats are lossy, so each conversion discards a little detail — start from the highest-bitrate WMA you have. A 3-minute song is ≈ 3.6 MB at 160 kbps as WMA and ≈ 4.3 MB at 192 kbps as MP3. The original sample rate and channel layout are kept unless you change them under Advanced.
What's the difference between WMA and MP3?
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.
MP3 (MPEG-1 Audio Layer III) was developed largely at Germany's Fraunhofer Institute and standardised in 1993. It removes sounds the ear is unlikely to notice — a technique called perceptual coding — so a 3-minute song takes about 4 MB at 192 kbps instead of about 32 MB as WAV. The last MP3 patents expired in 2017, so it's now free to use.
Learn more: WMA format guide · MP3 format guide
| Property | WMA | MP3 |
|---|---|---|
| Compression | Lossy (also Pro/Lossless variants) | Lossy |
| Typical bitrate | 64–192 kbps | 128–320 kbps |
| 3-minute song | ≈ 3.6 MB at 160 kbps | ≈ 4.3 MB at 192 kbps |
| Tags and cover art | Yes | Yes (ID3) |
| Compatibility | Windows; poor on Mac, iPhone and browsers | Universal |
| Best for | Old Windows Media Player libraries | Music and podcasts on any device |
| Introduced | 1999 | 1993 |
Frequently asked questions
Why can't my iPhone play WMA?
Apple never supported Windows Media Audio. MP3 or M4A solves it.
What about WMA Lossless?
Fylo converts standard WMA; WMA Lossless and Pro variants may not decode in the browser.
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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