WMV to MKV Converter

Convert WMV to MKV online. WMV and MKV are containers, while the video and audio codecs live inside them. Free batch processing with no signup or watermark.

Upload your videos

What changes when you convert WMV to MKV?

WMV and MKV are containers, while the video and audio codecs live inside them. Compatible streams may be copied; otherwise they are re-encoded for the selected MKV settings.

For the widest playback support, check that the selected video and audio codecs are accepted by the device or service that will receive the MKV file.

Add multiple videos and adjust the available video and audio codec settings before processing.

Open the finished MKV file and check fine details, layout and compatibility in the app where you plan to use it.

What is a WMV file?

WMV (Windows Media Video) is Microsoft’s video format, once common for Windows clips and PowerPoint. It keeps files small but plays poorly outside Windows - Macs, phones and web browsers often can’t open it, so MP4 is the safer choice for sharing.

How to open a WMV file

WMV plays in Windows Media Player and VLC; on Mac, phones or the web, convert it to MP4 first.

What is a MKV file?

MKV (Matroska) is a flexible open container that holds high-definition video, multiple audio tracks and subtitles in one file. It is popular for movies and archiving, but is not natively supported by every device or browser.

How to open a MKV file

MKV plays in VLC and most modern media players; some phones, browsers and TVs need it converted to MP4 first.

Frequently asked questions

Is it free to convert WMV to MKV?

Yes. There is no sign-up, subscription or watermark on the converted file.

What happens to quality when WMV becomes MKV?

WMV and MKV are containers, while the video and audio codecs live inside them. Compatible streams may be copied; otherwise they are re-encoded for the selected MKV settings.

Which conversion options are available on this page?