Convert WMV to MP4
Free and instant — your WMV files are processed securely on our servers and deleted right after conversion. Nothing is stored.
How to convert WMV to MP4
- Step 01
Add your WMV files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
Your file is sent to our servers, converted and deleted right away — no sign-up, no queue, no waiting.
- Step 03
Download your MP4 files
Save each file individually or grab them all at once. Done.
Why convert WMV to MP4?
WMV is a Microsoft-only format that Macs, phones and most browsers can't play. Converting to MP4 gives you a file that plays everywhere — no Windows Media Player required.
WMV vs MP4 at a glance
WMV is Microsoft's proprietary video format for Windows Media Player — rarely supported outside Windows, and most modern devices and browsers can't play it at all. MP4 is the universal video format — plays on every device, browser and platform without extra codecs.
| Property | WMV | MP4 |
|---|---|---|
| Extension | .wmv | .mp4 |
| Full name | Windows Media Video | MPEG-4 Part 14 |
| First released | 1999 | 2001 |
| Developed by | Microsoft | ISO/IEC JTC 1 |
| Compression | Lossy | Lossy |
| Transparency | No | No |
| Animation | No | No |
| Best for | old Windows Movie Maker projects and video from Windows Media Player-era software | video sharing, streaming and playback on any device |
WMV to MP4 — frequently asked questions
Is this WMV to MP4 converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Will I lose quality converting to MP4?
MP4 uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.
Why won't my WMV file play on my Mac, phone or browser?
WMV is a Microsoft-only format with little support outside Windows Media Player. Converting to MP4 makes it playable on any device or browser.
Is the conversion private?
Video conversion runs on our servers with ffmpeg — your file is deleted immediately and never stored.