MP4 → WMV / online converter

MP4 to WMV Converter

Convert an MP4 video to WMV for Windows Media Player and old Windows software.

01 / how to

How to convert MP4 to WMV

01

ADD YOUR MP4

Drop the MP4 file into the box above or choose it from your device.

02

CONVERT TO WMV

WMV is already selected. Press Convert and wait a few seconds.

03

DOWNLOAD

Save the finished WMV file. The original is deleted from our server.

02 / what you get

What happens to your data

Kept

  • H.264, H.265 (HEVC, the iPhone and Android default) and other common codecs are read
  • Windows Media Video 8 (WMV2) with Windows Media audio, which plays in Windows Media Player and old Windows software
  • The original resolution and frame rate are kept
  • A phone video recorded sideways or upside down is turned the right way up

Good to know

  • WMV2 is an old codec: the quality is lower than H.264 at the same size, and the file is larger than an MP4 of the same clip.
  • Audio is stereo.
  • The video is re-encoded, which is slightly lossy. Only one video track and one audio track are kept; extra audio tracks and subtitles are left out.
  • A width or height that is an odd number of pixels is trimmed by one pixel, because video encoders need even sizes.
  • HDR video (for example from a recent iPhone) is converted to normal SDR colors, and 10-bit video becomes 8-bit, so it plays everywhere.
  • Audio with more than two channels (5.1 surround) is mixed down to stereo.
  • Files up to 150 MB are accepted. Long or very high-resolution videos can take several minutes, and a conversion that runs past about 4 minutes is stopped with a message.

03 / formats

MP4 vs WMV

MP4

An MP4 file is the most universally supported video container — plays on every device, browser, and platform. The default choice when you're not sure what format to use.

Used in: Universal playback · Sharing · Web video

WMV

A WMV file is Microsoft's older video format, built for Windows Media Player. Largely replaced by MP4 today.

Used in: Windows Media Player · Older Windows libraries

04 / more

More conversions

Have a different file? Open the main converter — it detects the format for you.