How to convert WMA to FLAC
- 1 Drop your WMA files onto the page, or click “Choose files”. You can add many at once, or a whole folder.
- 2 FLAC is already selected as the output. Optionally open Options to adjust sample rate, channels, normalise loudness.
- 3 Click Convert, then Save. Converting several files? Save them all as one ZIP.
About the formats
WMA · Windows Media Audio
WMA is Microsoft’s legacy audio format. Many modern phones, Macs and media players no longer support it.
FLAC · Free Lossless Audio Codec
FLAC is lossless compressed audio: about half the size of WAV with exactly the same sound. It is popular for music archives.
The conversion runs on your device using FFmpeg compiled to WebAssembly. You can adjust: sample rate, channels, normalise loudness, start at, end at.
Frequently asked questions
How do I convert WMA to FLAC?
Drop your WMA files onto the page, or click “Choose files”. You can add many at once, or a whole folder. FLAC is already selected as the output. Optionally open Options to adjust sample rate, channels, normalise loudness. Click Convert, then Save. Converting several files? Save them all as one ZIP.
Are my files uploaded to a server?
No. The conversion runs entirely in your browser using WebAssembly. Your files never leave your device, so it is safe for private photos, contracts and business data. Once the page has loaded it even works offline.
Will converting WMA to FLAC reduce quality?
No. Both WMA and FLAC keep full quality, so the conversion is lossless.
Can I convert multiple WMA files to FLAC at once?
Yes. Add as many WMA files as you like; they are converted in parallel on your device and you can download them all as a single ZIP.
Is it free? Are there limits?
It is free, with no sign-up, no watermark and no daily limits. Because nothing is uploaded there is no upload size limit either; the only limit is your device’s memory, which matters mostly for very large videos.
Convert WMA to other formats
See everything the WMA converter and the FLAC converter can do.