WMA to FLAC Converter
Convert WMA to FLAC free — no upload, no signup
To convert WMA to FLAC, 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. Store WMA audio losslessly in FLAC.
Drop audio files here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
FLAC is lossless — no bitrate to choose. Sample rate and channels are under Advanced.
Advanced
How to convert WMA to FLAC
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
FLAC 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 FLAC file or all of them as one ZIP.
Why convert WMA to FLAC?
Some archive workflows require FLAC.
What happens when you convert WMA to FLAC?
The decoded WMA is saved as FLAC, much larger than the original.
How does Fylo convert WMA to FLAC?
Fylo decodes the WMA audio in the WMA with ffmpeg compiled to WebAssembly and encodes it with FLAC lossless compression. Nothing is added back: the FLAC is an exact but larger copy of the decoded WMA (≈ 18–24 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 FLAC?
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.
FLAC (Free Lossless Audio Codec) was released in 2001 and later maintained by the Xiph.Org Foundation. It compresses PCM audio like a ZIP file compresses data: nothing is thrown away, so a FLAC decodes to exactly the same samples as the source WAV, typically at 50–70% of the size.
Learn more: WMA format guide · FLAC format guide
| Property | WMA | FLAC |
|---|---|---|
| Compression | Lossy (also Pro/Lossless variants) | Lossless |
| Typical bitrate | 64–192 kbps | ≈ 700–1,100 kbps |
| 3-minute song | ≈ 3.6 MB at 160 kbps | ≈ 18–24 MB |
| Tags and cover art | Yes | Yes (with cover art) |
| Compatibility | Windows; poor on Mac, iPhone and browsers | Android, Windows 10+, macOS, most players and hi-fi gear |
| Best for | Old Windows Media Player libraries | Archiving music without quality loss |
| Introduced | 1999 | 2001 |
Frequently asked questions
Does converting WMA to FLAC improve quality?
No. WMA is lossy, so detail removed during its compression can't be restored. The FLAC is a lossless copy of what the WMA sounds like — bigger, but not better.
Is this worth it?
Only if your system needs FLAC input.
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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