Convert WMV to MP3
Convert any video file to MP3 format online for free. Fast, secure, and easy-to-use video to MP3 converter with no software installation required.
Drag & Drop Video File
or click below to browse
Max file size: 50 MBMax duration: 30 min
Sign up for increased limitsA free account gets you up to 50 MB and 30 min.
How to Use WMV → MP3
Upload File
Drag and drop your WMV file or click to browse. Supports files up to 1GB.
Convert
Select MP3 as your output format and click convert. Our servers will process your file instantly.
Download
Download your converted file instantly. The download link expires in 1 hour for security.
Why Choose Scriptivox WMV to MP3 Converter?
Fast Conversion
Our powerful servers process your files quickly, delivering converted files in seconds.
100% Free
Convert your files completely free with no hidden costs or subscription fees.
Secure & Private
Your files are encrypted and automatically deleted after conversion. We never store or share your data.
No Installation
Works directly in your web browser. No software download or installation required.
WMV vs MP3: format comparison
How the two formats differ on the things that change your result.
| Specification | WMV (source) | MP3 (result) |
|---|---|---|
| Container | ASF | MPEG-1/2 Audio Layer III |
| Developed by | Microsoft | Fraunhofer IIS / MPEG |
| Introduced | 1999 | 1993 |
| Audio codecs | WMA | MP3 |
| Compression | Lossy | Lossy |
| Typical bitrate | 128–384 kbps | 128–320 kbps |
| Approx. file size | 15–75 MB per minute | 0.96–2.4 MB per minute |
| Metadata / tags | — | ID3v2 |
| Licensing | Proprietary | Patents expired |
| Plays natively on | Native: Windows · Needs a player: macOS, iOS, Android | Native: Web browsers, Windows, macOS, iOS, Android, Smart TVs |
| Best for | Windows media libraries, legacy archives | music libraries, podcasts, sharing with anyone |
What changes when you convert WMV to MP3
Only the soundtrack survives: the video stream is dropped, and the WMA audio inside the WMV file is re-encoded as MP3.
The size drop is dramatic because the video stream is where nearly all the data lives. A minute of WMV runs around 45 MB; the extracted MP3 is roughly 1.7 MB per minute.
About WMV to MP3 Conversion
This tool takes the audio track from inside a WMV file, a ASF container from 1999, and saves it on its own as MP3. Everything visual is left behind.
WMV comes from Microsoft and dates to 1999. It carries WMV9, VC-1, which is what determines the quality ceiling of anything you convert out of it.
MP3 was introduced by Fraunhofer IIS / MPEG in 1993. It carries MP3 and has native playback on 6 of six platform categories, which is the practical reason to choose it as a target.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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