MP4 to WMA Converter

Extract WMA audio from any MP4 video for Windows playback. Free, in your browser, with no signup, no file limits, and no watermark.

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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

Pull the audio out of an MP4 and save it as WMA, free and right in your browser. WMA is Microsoft's audio format, so it plays in Windows Media Player and Groove with nothing extra to install, which makes it handy for older Windows libraries and apps that expect it. The video is dropped and you keep a small, Windows-friendly audio file.

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 MP4 to WMA

1
Upload your MP4
Drag your MP4 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 you want, then start. Free, with no sign-up.
3
Download your WMA
Save the finished WMA to your device, or open it in the editor to trim or reuse it.

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

MP4 vs WMA

MP4

MPEG-4 Part 14

The video format that plays everywhere

Type: Video container
Holds: H.264 video plus AAC audio, sometimes subtitles
Typical size: Large, it carries video
Plays on: Phones, browsers, TVs, almost any player

Best for:Watching and sharing video

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?

The WMA can only be as good as the audio already inside your MP4.
A bitrate higher than the source does not add quality, it only makes a bigger file.
192 to 320 kbps keeps music clear. 128 kbps is fine for speech.

Converting to WMA re-encodes the audio. To keep it exactly as it sits inside the video, convert to M4A instead, or to WAV for an uncompressed copy.

Use cases

What people use it for

PodcastersPublish a clean audio episode

Students & lecturesReplay recordings anywhere

MusiciansSave sets to listen offline

TranscriptionSend a small file, not a video

CommutersTalks and audiobooks on the go

Troubleshooting

If something looks off

The WMA has no sound

Some videos store audio as AC-3. The converter still handles it, but if a clip plays silent, re-download the source and convert again.

The file is too large to email

Convert at a lower bitrate, 128 kbps for talking, or trim the clip first to cut its length.

Which apps open WMA files?

Almost anything opens it: your browser, your phone, any music app, or VLC. No special player needed.

FAQ

MP4 to WMA questions

Is the MP4 to WMA converter free?

Yes. EchoWave converts MP4 to WMA with no signup, no file-count limit, no trial, and no watermark. Upload your video, convert it, and download the WMA from your browser.

How do I convert MP4 to WMA?

Upload your MP4, choose WMA as the output format, and start the conversion. When it finishes, download the WMA to your device, or open it in the editor to trim it first.

Why convert MP4 audio to WMA?

WMA is the audio format Windows handles natively, so it fits older Windows Media libraries, Windows-only apps, and devices that expect a Microsoft format. If you mainly need wide compatibility instead, MP3 plays on practically everything and is the safer everyday choice.

Will I lose quality converting MP4 to WMA?

WMA is a lossy format, and your MP4's audio was already compressed, so this is a lossy-to-lossy step that loses a little. Convert at a higher bitrate to keep it clear, and always start from the best MP4 you have rather than an already-reduced copy.

Does WMA play on Mac and iPhone?

Not by default. WMA is a Microsoft format, so Macs and iPhones usually need VLC or a conversion to play it. If your audio needs to work across Apple and Windows alike, convert the MP4 to MP3 or M4A instead of WMA.

What bitrate should I pick for WMA?

Use a higher bitrate such as 192 to 256 kbps for music you want to keep clear, and 128 kbps is fine for speech and podcasts. A bitrate above what the MP4 already held will not add quality, it only makes a larger file.

Which apps open WMA files?

Windows Media Player and Groove open WMA on Windows with no add-ons. VLC plays WMA on any operating system, including Mac and Linux, so it is the simplest way to play a WMA outside Windows without converting it again.

Does the converter work on Mac, Windows, and Android?

Yes. The converter runs in any browser, so you can create a WMA from an MP4 on macOS, Windows, Chromebook, Linux, iPhone, iPad, and Android with nothing to install and no account to create.

Can I convert several MP4 files to WMA?

Nothing limits how many MP4 videos you can put through, so build up a Windows Media library by converting them in sequence and saving each WMA as it completes. Because WMA is a compact lossy audio format, the files that come out are small, though a long video still takes a little more time to upload than a short clip.