M4A to WMA Converter

Turn Apple AAC audio into a Windows Media WMA file that plays in Windows Media Player. Free, in your browser, with no signup and no watermark.

Select M4A file →

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Updated June 2026

M4A is Apple's AAC audio wrapped in an MP4 container, while WMA is Microsoft's Windows Media Audio. Converting M4A to WMA gives you a file that drops straight into Windows Media Player and older Windows audio libraries without a codec hunt. Both formats are lossy, so EchoWave re-encodes the sound at the bitrate you choose, free and right in your browser.

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 M4A to WMA

1
Upload your M4A
Drag your M4A onto the converter or pick it from your device. Nothing to install.
2
Choose WMA and convert
Select WMA as the output, set the bitrate if it applies, then start. Free, with no sign-up.
3
Download your WMA
Save the finished WMA, or open it in the editor to trim or adjust it first.

Try it

Estimate your WMA

Pick a bitrate and a length to see the WMA file size before you convert.

Bitrate

Length10 min

1 min60 min

Estimated WMA size14MBGreat for most music

An estimate. Real size varies a little with the encoder and the audio itself.

The formats

M4A vs WMA

M4A

MPEG-4 Audio

Apple-friendly AAC audio

Type: Lossy audio, usually AAC
Holds: AAC audio in an MP4 container
Typical size: Small, smaller than MP3 at the same quality
Plays on: iPhone, Mac, iTunes, and most players

Best for:Apple devices and clean compressed audio

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

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 WMA 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 WMA 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 WMA

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

FAQ

M4A to WMA questions

Is the M4A to WMA converter free?

Yes. EchoWave converts M4A to WMA with no signup, no file-count limit, no trial, and no watermark. Upload your M4A, pick a bitrate if you want, convert, and download the WMA from your browser.

Why would I convert M4A to WMA?

WMA was built by Microsoft and slots neatly into Windows Media Player, Groove Music, and older Windows software. If you are loading audio onto a Windows-first setup or an older portable player that prefers WMA, converting from M4A saves you fiddling with extra codecs.

Will converting M4A to WMA lose quality?

M4A and WMA are both lossy, so re-encoding from one to the other drops a little detail each pass. Choosing 192 kbps or higher for the WMA keeps the result close to your M4A source, and a higher bitrate cannot add quality the M4A never had.

What bitrate should I pick for the WMA?

Use 192 to 256 kbps for music you want to keep sounding clean, and 128 kbps for speech, voice notes, or interviews. Lower bitrates make smaller files but thin out the sound, so match the bitrate to how the audio will be used.

What opens a WMA file?

Windows Media Player, Groove Music, Winamp, and MPlayer all play WMA, and VLC handles it across Windows, Mac, and Linux. WMA is a Microsoft format, so support outside the Windows world is patchier, which is why MP3 stays the safer choice for sharing.

Does the M4A to WMA converter work on Mac and Windows?

Yes. It runs in any browser on macOS, Windows, Chromebook, and Linux, so you can make a WMA on a Mac even though WMA is a Windows format. There is nothing to download and no account to create.

Can I convert M4A to WMA on iPhone or Android?

Yes. The converter works in your mobile browser, so you can turn an M4A into a WMA on iPhone, iPad, or Android. Bear in mind WMA is aimed at Windows, so the file is most useful once it reaches a Windows machine.

Do the song details carry over to the WMA?

Title, artist, and album travel along as tags when your M4A includes them. If any details are blank afterward, you can add them in Windows Media Player or any music app once the WMA is on your device.

Can I convert several M4A files to WMA?

Yes. There are no file-count limits on these pages, so you can convert your M4A tracks one after another. Larger files simply take a little longer to upload and convert.

Should I use WMA or MP3 instead?

Pick WMA when you specifically need a Windows Media file for an older player or library. For audio you want to play anywhere, MP3 is the more universal choice, and you can convert M4A to MP3 the same way on EchoWave.