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WEBM to WMV converter

Convert WEBM to WMV in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.

I want WMV
Quality

Applies only when the video has to be re-encoded. A straight copy keeps the original quality.

Advanced 2
Always re-encode Rebuilds the picture as H.264 (VP9 for WebM) even when it could be copied. Fixes files that won’t play on older TVs and PCs.

Bytes of your files sent anywhere: 0 B

Related conversions

Need it the other way round? Convert WMV to WEBM

Other ways to convert WEBM

Convert other formats to WMV

Read more about the WEBM format and the WMV format, or see every video tool and all video conversions.

Should you convert WEBM to WMV?

Yes, when a device or app needs WMV. WMV can’t carry the VP8, VP9 or AV1 video found in WEBM files, so the picture is re-encoded as Windows Media Video, which takes about as long as the clip on a recent laptop.

Check that WMV is really needed: it plays in Windows Media Player and VLC; not Macs, iPhones, browsers or most websites, while WEBM is opens in current browsers and apps.

WEBM is the web’s open video format, holding VP8, VP9 or AV1 video with Opus or Vorbis audio; WMV is the Windows Media video format from the Windows XP era. Choose WMV only for an old Windows PC or presentation that won’t take anything else.

WEBM and WMV compared
Property WEBM WMV
Usually contains VP9 or AV1 video with Opus audio WMV2 or WMV3 video with WMA audio
Support Opens in current browsers and apps A legacy format
Plays on Chrome, Firefox, Edge and recent Safari, but not the iPhone Photos app, many editors or social uploads Windows Media Player and VLC; not Macs, iPhones, browsers or most websites
Best for Video embedded in web pages, and browser screen recordings Old Windows presentations and players
Introduced 2010 1999

How to convert WEBM to WMV

  1. 01

    Add your WEBM

    Drop your WEBM video onto the box, or click to choose it. It is read from your disk and stays there.

  2. 02

    Check the settings

    The output is already set to WMV. Change the quality if you want to; the defaults suit most files.

  3. 03

    Save the WMV

    Press convert and save the WMV. Several files come back together as a ZIP.

What changes when WEBM becomes WMV

Re-encoded, at a quality you choose

Because the video has to be compressed again, a little detail is lost. The default quality keeps the difference invisible; choose High for footage you’ll edit further.

WMV is an older format

Choose WMV only for an old Windows PC or presentation that won’t take anything else. For sharing, uploading or playing on phones, MP4 is the better choice.

Expect a larger file

WMV generally takes more room than WEBM. If the file has to fit an upload limit, check the size once it’s converted. WEBM: Usually a little smaller than MP4 at the same quality. WMV: Larger than MP4 for the same quality.

This page is put together from our notes on each format, choosing only what is true of WEBM and WMV, so every pairing states the same facts the same way. How these pages are made.

Why it doesn’t upload

Video files are big, and uploading one just to change its container can take longer than the conversion itself. Your browser can read and write these formats, so the file never has to leave your device.

How to check for yourself

Worth knowing

  • About the WEBM. Browser screen recorders save WEBM, and the recording then fails to upload or attach almost everywhere else.
  • About the WMV. WMV files from old DRM-protected downloads can’t be converted by any tool; only unprotected ones will work.
  • MP4, MOV, MKV and WebM are handled by your browser’s own video engine, often with hardware help. AVI, WMV, FLV, MPG and the other older formats use the FFmpeg engine, a one-time 31 MB download, and are slower.

Questions

Does converting WEBM to WMV lose quality?

The video is re-encoded, so a little detail is lost, but the default quality is set high enough that it doesn’t show.

Will a WMV play on my phone?

WMV a legacy format: Windows Media Player and VLC; not Macs, iPhones, browsers or most websites. Windows Media Player and VLC play WMV files; on a Mac, use VLC.

Read more about this

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