Convert WMV to MP4 Online
Turn an older Windows Media Video (.wmv) file into universal MP4 — ready to play on any device, not just Windows Media Player.
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Why Convert WMV to MP4?
WMV is Microsoft's legacy video format, historically tied closely to Windows Media Player — but modern devices, especially non-Windows systems like Macs, phones, and streaming platforms, have inconsistent or absent WMV support.
MP4 is the format virtually every device and platform expects by default, making conversion necessary the moment an old WMV file needs to play somewhere outside the Windows ecosystem.
Converting also makes older WMV content compatible with modern video editors and sharing platforms, most of which never prioritized WMV support.
How to Convert WMV to MP4
- Upload your WMV file.
- MiConvert re-encodes the video and audio into the MP4/H.264 container.
- Download the converted MP4 file.
- Play, edit, or share it on any device or platform.
Key Features of MiConvert WMV to MP4
- Converts legacy Windows Media Video (WMV) to universal MP4
- Compatible with Mac, mobile, and non-Windows platforms
- No Windows Media Player or Windows installation required
- Ready for use in modern video editors and sharing platforms
- Free for files up to 50MB, 100MB for registered accounts
Video Tutorial
Watch this step-by-step tutorial to learn how to convert WMV files to MP4 format online for free using MiConvert.com. No software installation required.
Frequently Asked Questions
Will video quality change after converting?
No — the conversion preserves the original resolution and quality; only the container and codec change to the more compatible MP4/H.264 format.
Do I need Windows Media Player or Windows installed to convert?
No — the conversion happens entirely on our servers, regardless of your operating system.
Will this work with old home videos and downloaded WMV files alike?
Yes — any standard WMV file converts, regardless of source.
Will audio stay in sync after conversion?
Yes — the audio track converts along with the video, staying properly synced.
Is there a file size limit?
50MB free, 100MB for registered accounts.