Video conversion
Convert MP4 to WMA
Updated Jul 2026
MP4 is a video format, so converting it to WMA means pulling out just the audio track and saving it as a WMA file, the video image is discarded. Open the MP4 in a converter, choose WMA as the output, and it extracts and encodes the sound. Doing this on your own computer means the video never has to leave your machine just to get the audio out of it.
- Extension
- .mp4
- Type
- Video
- Typically
- The universal video format
- Compression
- Lossy
- Extension
- .wma
- Type
- Audio
- Typically
- Windows audio
- Compression
- Lossy
Convert MP4 to WMA on your own computer. Nothing uploads.
How to convert MP4 to WMA
- Open Morphjet and drag in the MP4 file or a whole folder of them.
- Choose WMA as the output format. Morphjet pulls the audio track out and discards the picture.
- Convert. The WMA files are written next to your originals, and nothing leaves your machine.
MP4 vs WMA: what actually changes
| MP4 | WMA | |
|---|---|---|
| Contains video | Yes | No, audio only |
| File size | Much larger, holds picture and sound | Much smaller, sound only |
| Opens everywhere | Yes, universal video support | Best on Windows, limited elsewhere |
| Quality | Depends on source | Lossy, a bit of loss when the audio is re-encoded |
| Typical use | Watching on any device | Playing audio on Windows Media Player and similar apps |
When to convert, and when not to
Convert MP4 to WMA when you only need the sound from a video, like a recorded lecture, podcast, or music video, and you want a small audio file to play on a Windows machine or an older Windows Media app.
Keep the MP4 if you actually want to watch the video again, since converting to WMA throws away the picture for good.
Why not just use an online converter?
Pulling audio out of a video is a task people often reach for a web tool to do, which means uploading the whole video file, picture included, to a server you don't control just to get a few minutes of sound. Doing it on your own computer means the video never leaves your machine, and no one else ever sees or stores it.
Questions
Does converting MP4 to WMA keep the video?
No. WMA is an audio-only format, so the picture is discarded and you're left with just the sound track.
Will the audio quality drop?
A little. The audio is decoded from the MP4 and re-encoded as WMA, which is a lossy format, so there's a small loss. For voice recordings or casual listening it's not noticeable.
Why WMA instead of MP3?
WMA is Microsoft's own audio format and plays natively in Windows Media Player and other Windows apps without extra software. If you need wider compatibility across phones and other platforms, MP3 is usually the safer choice.
Can I convert MP4 to WMA without uploading the video?
Yes. A desktop app like Morphjet extracts the audio and converts it right on your computer, so the video file never has to travel over the internet.
Does the converted WMA keep any metadata from the MP4?
Basic details like title or duration may carry over depending on what the MP4 had embedded, but video-specific information like resolution obviously doesn't apply anymore.
Morphjet converts MP4, WMA, and 1,800+ other formats, all on your machine. Launching this July.