Filenary

WMV to MP3 Converter

Convert Windows Media Video files to MP3 audio right in your browser — free, private and with no size limit.

Drop your file here

or click to browse

Choose File

On first use, a ~30 MB conversion engine is downloaded to your browser (one time only).

This file is processed in your browser and never uploaded to a server.

How to convert WMV to MP3

  1. 1Drop your WMV file into the box above, or click to choose it from your device.
  2. 2Click Convert. The conversion runs locally in your browser — nothing is uploaded.
  3. 3Download your new MP3 file as soon as it's ready.

Why convert WMV to MP3?

WMV doesn't play on Macs, iPhones, Android or most websites without extra software. MP3 plays on every device, car stereo and app, with small file sizes.

Why people make this conversion

Windows Media presentations and old webinar exports become MP3s any phone can play.

The size math: WMV vs MP3

A minute of WMV video weighs about 20 MB; its soundtrack alone as MP3 is 1.4 MB. Extracting audio shrinks the file about 14.3× smaller.

What is WMV?

WMV is Microsoft's Windows Media video format, common in older Windows recordings and downloads.

  • MIME type: video/x-ms-wmv
  • Developed by: Microsoft, released 1999
  • Paired with the Windows Media and VC-1 codecs
  • Effectively legacy — modern devices expect MP4

What is MP3?

MP3 is the most popular audio format. It compresses music and speech into small files that play on any device.

  • MIME type: audio/mpeg
  • Standardized: 1993 (MPEG-1 Audio Layer III)
  • Common bitrates: 128–320 kbps
  • Plays on essentially every device made since 1993

Frequently asked questions

Is this WMV to MP3 converter free?
Yes, it's completely free with no sign-up, no watermark and no daily limits.
Are my WMV files uploaded to a server?
No. The conversion happens entirely inside your browser, so your files never leave your device.
Is there a file size limit?
Filenary sets no limit — even files over 1 GB work. The only practical limit is your device's memory.
Will converting WMV to MP3 reduce the quality?
MP3 uses lossy compression, so the file becomes smaller with a small, usually invisible, loss of detail. Settings are tuned to keep the result sharp.
Can I convert several WMV files at once?
This converter handles one file at a time. When it's done, click Start over to convert the next WMV file.
Does it work on iPhone, Android, Mac and Windows?
Yes. It runs in any modern browser — Chrome, Safari, Edge or Firefox — on phones, tablets and computers, with nothing to install.

More WMV conversions

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Add this tool to your website

Copy the code below and paste it into any page. It's free, needs no sign-up, and files are processed in your visitors' own browsers.