MP4 to WMA converter
Convert MP4 to WMA in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.
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Every request this page makes is listed as it happens. You’ll see our own code loading, and for some formats a codec engine, but never your file going out.
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Check it yourself: open your browser’s developer tools on the Network tab, or turn off Wi-Fi once the page has loaded. The tools keep working.
Related conversions
Read more about the MP4 format and the WMA format, or see every video tool and all video conversions.
Should you convert MP4 to WMA?
Yes, when you only need the sound: a song from a music video, the audio of a lecture, or a voice recording to transcribe. The picture is left out and the soundtrack is saved as WMA.
MP4 is the video container that plays on everything, usually holding H.264 video and AAC audio; WMA is the Windows Media audio format from the Windows XP era. Choose WMA only for an old Windows device; convert your WMA rips to MP3 or M4A to play them anywhere.
| Property | MP4 | WMA |
|---|---|---|
| What it is | The video container that plays on everything, usually holding H.264 video and AAC audio | The Windows Media audio format from the Windows XP era |
| Audio inside | H.264 or HEVC video with AAC audio | 64–192 kbps |
| Plays on | Every phone, browser, TV, editor, chat app and upload form | Windows and VLC; not iPhones, Macs, most Android apps or browsers |
| Best for | Sharing video anywhere | Old Windows software and devices that expect it |
How to convert MP4 to WMA
- 01
Add your MP4
Drop your MP4 video onto the box, or click to choose it. It is read from your disk and stays there.
- 02
Check the settings
The output is already set to WMA. Change the bitrate if you want to; the defaults suit most files.
- 03
Save the WMA
Press convert and save the WMA. Several files come back together as a ZIP.
What changes when MP4 becomes WMA
From AAC to WMA
MP4 soundtracks are usually AAC, so saving WMA is one more lossy step. 192 kbps suits music, 128 kbps is plenty for speech, and going above the original bitrate only makes the file bigger.
Video files without sound
Screen recordings and some exported clips have no audio track at all. The file is checked as soon as you add it, and you’ll be told before converting if there’s nothing to extract.
This page is put together from our notes on each format, choosing only what is true of MP4 and WMA, so every pairing states the same facts the same way. How these pages are made.
Why it doesn’t upload
Uploading a whole video to keep only its sound wastes time and data, and hands over the footage too. The audio track is read and saved right here, and the file never leaves your device.
How to check for yourselfWorth knowing
- About the MP4. An MP4 that won’t play is rarely broken; it usually holds a newer codec such as HEVC or AV1 that the player doesn’t support.
- About the WMA. WMA files bought from old online stores are often DRM-protected; no converter can open those.
- AVI, WMV, FLV and other older formats use the FFmpeg engine, a one-time 31 MB download.
Questions
Does extracting WMA from an MP4 lose quality?
The soundtrack is compressed again as WMA. At 192 kbps the difference from the original is inaudible for nearly everyone.
Can I get the audio from only part of the video?
Yes. Set a start and end time before converting, and only that section is saved as WMA.
Read more about this
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