WMA to FLAC Converter

Move Windows Media audio into open, lossless FLAC for your archive. Free, in your browser, with no signup and no watermark.

Select WMA file →

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We support most file types including: MP4, MOV, WEBM, AVI, MP3, WAV, PNG, JPEG, GIF, MKV, PDF, FLAC, TIFF!

EchoWave is used by creators, marketers, educators, and businesses to convert and edit media online.

Updated June 2026

WMA is a proprietary Microsoft codec, while FLAC is open, royalty-free, and the format most people pick for a long-term lossless archive. This converter writes your WMA out as FLAC in your browser, free and with no signup. FLAC keeps everything it is handed and packs it to roughly half the size of a WAV, so it is a clean home for a music library you want to keep for good.

Free, no sign-upNo account, no trial

Runs in your browserNothing to install

Works on every devicePhone, tablet, laptop

No watermarkClean output, every time

How it works

How to convert WMA to FLAC

1
Upload your WMA
Drag your WMA onto the converter or pick it from your device. Nothing to install.
2
Choose FLAC and convert
Select FLAC as the output, set the bitrate if it applies, then start. Free, with no sign-up.
3
Download your FLAC
Save the finished FLAC, or open it in the editor to trim or adjust it first.

Try it

Estimate your FLAC

Pick a typical rate and a length to see the FLAC file size before you convert.

Typical rate

Length10 min

1 min60 min

Estimated FLAC size66MBTypical music

FLAC is lossless, so the real size depends on the music. These are typical ranges.

The formats

WMA vs FLAC

WMA

Windows Media Audio

Windows Media audio, a Microsoft format

Type: Lossy audio format
Holds: Windows Media Audio, audio only
Typical size: Small, built for Windows
Plays on: Windows Media Player and VLC

Best for:Older Windows audio libraries

FLAC

Free Lossless Audio Codec

Lossless audio at about half the size of WAV

Type: Lossless audio format
Holds: Compressed audio with no quality loss
Typical size: About half the size of WAV
Plays on: VLC and most players, not older iPhones by default

Best for:Archiving music at full quality

Will it lose quality?

Converting a lossy file to a lossless one cannot restore detail that was already discarded. It only makes a larger file.
Going from a high-quality source to FLAC keeps the sound clear while changing the format.
Each pass between two lossy formats loses a little, so always convert from the best source you have.

Use cases

What people use it for

Music librariesStandardise your collection

ListenersUse a format your player likes

PodcastersMatch your host requirements

EditorsImport audio your tool accepts

DevicesPlay on phones and car stereos

Troubleshooting

If something looks off

The FLAC is larger than I expected

Lossless and uncompressed formats are big by design. If you want a smaller file, pick a lossy format and a bitrate around 192 to 256 kbps.

The song details are missing

Title, artist, and album travel as tags when the source has them. If they are blank, add them in any music app after converting.

My app will not open the FLAC

Most apps open common audio, but a few are picky. VLC plays almost anything, or convert to MP3 for the widest support.

FAQ

WMA to FLAC questions

Why convert WMA to FLAC?

FLAC is open and royalty-free, where WMA is a Microsoft format with patchy support outside Windows. People convert to FLAC to escape a closed format and store music in a widely-supported lossless container that should still open in players for years to come.

Does converting WMA to FLAC improve the sound?

No. Most WMA files are lossy, and FLAC cannot rebuild detail the WMA already discarded. FLAC preserves exactly what it receives with no further loss, so it locks in the current quality rather than improving it. Only WMA Lossless would have full detail to carry over.

Is FLAC smaller than WAV?

Yes, usually about half the size. FLAC compresses audio with no quality loss, so you get a lossless file that is far smaller than an uncompressed WAV of the same recording. That is what makes it a good archive format.

Is the WMA to FLAC converter free?

Yes. EchoWave converts WMA to FLAC with no signup, no file-count limit, no trial, and no watermark. Upload your file, convert it, and download the FLAC from your browser.

After converting WMA to FLAC, what plays the file?

VLC, foobar2000, most Android phones, and plenty of modern players open FLAC natively. Support is wide but not universal, so older iPhones and some car stereos may need MP3 instead. Convert to MP3 if you hit a device that will not play FLAC.

Does the WMA to FLAC converter work on Mac, Windows, iPhone, and Android?

Yes. The converter runs in any browser, so it works on macOS, Windows, iPhone, iPad, Android, Chromebook, and Linux with nothing to install. That is useful since most of these devices cannot open a raw WMA on their own.

Can I convert a whole WMA library?

There are no file-count limits on these pages, so you can convert your WMA collection one file after another and rebuild it as FLAC. Each file is processed on its own, so you can stop and pick up again whenever you like.

What can I do with the FLAC afterward?

Add it to your library, store it as your master copy, or open it in the editor to trim a track or split a long recording before you archive it.