Convert WMV to MKV — Free Online Converter
Convert Windows Media Video (.wmv) to Matroska Video (.mkv) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
About WMV to MKV Conversion
WMV uses Microsoft's ASF container with VC-1 or WMV2 codecs and WMA audio. MKV (Matroska Video) is the open-source container that supports virtually every codec ever created — H.264, H.265, VP9, AV1, VC-1, DTS, FLAC, and hundreds more. MKV also supports unlimited audio tracks, subtitle tracks (SRT, SSA, VobSub), chapters, and attachments. Converting WMV to MKV can be a zero-loss remux (since MKV accepts VC-1) or a full transcode to modern codecs.
Why Convert WMV to MKV?
MKV provides features that ASF/WMV cannot: embedded subtitles in multiple languages, multiple audio tracks, chapter markers, and broad media server support (Plex, Jellyfin, Kodi). If you manage a video library, MKV is the preferred archival container. For WMV files, MKV also removes any Windows Media DRM dependencies (DRM-free sources only) and provides a clean, open-source container.
Common Use Cases
- Repackaging WMV video collections into MKV for Plex or Jellyfin media servers
- Adding subtitle tracks to WMV videos by converting to MKV with embedded SRT files