Video conversion
Convert WMV to MP3
Updated Jul 2026
WMV is Windows Media Video, a video file that carries a video track and an audio track together. To convert WMV to MP3, you extract just the audio and re-encode it as MP3, dropping the picture. Doing this on your own computer means the file never has to leave your machine to be processed elsewhere.
- Extension
- .wmv
- Type
- Video
- Typically
- Windows video
- Compression
- Lossy
- Extension
- .mp3
- Type
- Audio
- Typically
- The universal audio format
- Compression
- Lossy
Convert WMV to MP3 on your own computer. Nothing uploads.
How to convert WMV to MP3
- Open Morphjet and drag in the WMV file, or a whole folder of them.
- Choose MP3 as the output format, and pick a bitrate if you want smaller files or higher quality audio.
- Convert. Morphjet pulls out the audio track and re-encodes it as MP3.
- The MP3 is written next to your original, and nothing leaves your machine.
WMV vs MP3: what actually changes
| WMV | MP3 | |
|---|---|---|
| Content | Video, with an audio track | Audio only, no picture |
| File size | Large, video takes up most of the space | Small, often a fraction of the size |
| Audio quality | Already compressed, quality set when it was made | Re-encoded and lossy, quality capped by the original audio |
| Compatibility | Plays natively on Windows, limited elsewhere | Plays on nearly any phone, computer, or speaker |
| Song or track info | Rarely tagged | Can hold title, artist, and album tags |
When to convert, and when not to
Convert WMV to MP3 when you just want the audio from a video, like a lecture, a webinar recording, or a song ripped from a music video, and you don't need the picture.
Keep the original WMV if you still need the video part, since converting to MP3 throws the picture away for good.
Why not just use an online converter?
Online converters ask you to upload your WMV file to their servers, wait in a queue, then download the result, all while the video sits on a stranger's storage in the meantime. Converting on your own computer means the file, and whatever conversation or song is in it, never leaves your machine. That matters more than it seems for old home movies, recorded meetings, or anything with people's voices in it.
Questions
Does converting WMV to MP3 lose quality?
A little. MP3 is a lossy format, and the audio in the WMV was likely already compressed, so you're re-encoding audio that's already lossy. At a decent bitrate the difference is hard to hear for speech or casual listening.
Will I lose the video when I convert WMV to MP3?
Yes, on purpose. MP3 only holds audio, so converting to MP3 strips out the picture and keeps just the sound. If you need the video too, keep the original WMV file.
Does the MP3 keep any song or track information?
Sometimes. If the WMV has metadata like a title or artist, Morphjet can carry that over as MP3 tags, but many WMV files, like screen recordings or webinars, don't have any to begin with.
Can I convert WMV to MP3 without uploading it anywhere?
Yes. Morphjet runs the conversion locally, so the file stays on your computer the whole time. You could disconnect from the internet and it would still work.
What's a good bitrate for the MP3?
For spoken word like lectures or meetings, a lower bitrate keeps files small and still sounds clear. For music, a higher bitrate keeps more detail. Either way, you're limited by how good the audio was in the original WMV.
Morphjet converts WMV, MP3, and 1,800+ other formats, all on your machine. Launching this July.