Convert WEBM to WMV online in seconds — free, with no sign-up. WMV is lossy and ideal for legacy Windows video; converted to MP4 for sharing. Your files are encrypted and deleted automatically after 24 hours.
WEBM
WebM — A royalty-free web video format (VP8/VP9) that's smaller than H.264 at equal quality.
WMV
Windows Media Video — A Microsoft format with limited support outside Windows.
How to convert WEBM to WMV
- 1Upload your WEBM file
Click “Choose a file” or drag and drop your WEBM file onto the page — no sign-up or email needed.
- 2Convert to WMV
WMV is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your WMV file
Your WMV file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
WEBM vs WMV
| WEBM | WMV | |
|---|---|---|
| Full name | WebM | Windows Media Video |
| Type | Video | Video |
| Compression | Lossy | Lossy |
| Best for | efficient web video in Chrome, Firefox and Edge | legacy Windows video; converted to MP4 for sharing |
Frequently asked questions
Does converting WEBM to WMV lose quality?
Both WEBM and WMV use compression, so re-encoding discards a little more data. For a single conversion the change is virtually invisible; just avoid repeatedly re-converting the same file.
What's the difference between WEBM and WMV?
WebM (WEBM) is lossy and best for efficient web video in Chrome, Firefox and Edge. Windows Media Video (WMV) is lossy and best for legacy Windows video; converted to MP4 for sharing. Convert WEBM to WMV when you need a video for legacy Windows video.
Is the WEBM to WMV converter free?
Yes — converting WEBM to WMV is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my WEBM files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert WEBM to WMV on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert WEBM to WMV?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert WEBM files to?
Besides WMV, you can convert WEBM to AAC, AVI, FLAC, FLV, GIF, JPG and more — see the full list of WEBM conversions below.
Other conversions
Last updated July 2026