Convert WMV to WEBM
WMV is great for Windows Media Player and older PowerPoint presentations, but WEBM is the better choice for web video, HTML5 players and screen recordings. Convert WMV to WEBM in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert WMV to WEBM
- 1
Tap Choose files and select one or more WMV files (or drag them in).
- 2
Check that WEBM is selected. Use Advanced options for resolution, size or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your WEBM downloads automatically. Converting several files? Grab them all as a ZIP.
WMV vs WEBM
Both formats are lossy, so the video is re-encoded once. Pick High quality to keep it as close to the original as possible, or Small for the smallest file.
| WMV | WEBM | |
|---|---|---|
| Full name | Windows Media Video | WebM Video |
| Type | Video | Video |
| Compression | Lossy | Lossy |
| Developed by | Microsoft | |
| Introduced | 1999 | 2010 |
| Plays on iPhone | ✕ No | ◐ Partly / with an app |
| Plays on Android | ◐ Partly / with an app | ✓ Yes |
| Plays on Windows | ✓ Yes | ✓ Yes |
| Plays on Mac | ✕ No | ◐ Partly / with an app |
About WMV and WEBM
WMV: WMV is Microsoft's video format for Windows Media Player and older Windows PCs.
WEBM: WebM is Google's open video format using VP8/VP9 and Opus. It is built for the web and is what screen recorders and browsers produce.
Frequently asked questions
How do I convert WMV to WEBM on my phone?
Will converting WMV to WEBM reduce quality?
Is this WMV to WEBM converter free?
Are my files uploaded to a server?
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