Convert MKV to WMV Online Free
Convert Matroska MKV video to WMV format for Windows Media Player and legacy Windows compatibility. ChangeThisFile uses FFmpeg on secure servers to convert your file quickly without any software installation.
ChangeThisFile converts MKV to WMV free using FFmpeg on secure servers. Your Matroska file transfers with full encryption, is processed server-side into WMV format, and automatically deleted after download. No account or software needed.
Convert Matroska to WMV
Drop your Matroska file here to convert it instantly
Drag & drop your .mkv file here, or click to browse
Convert to WMV instantly
Matroska vs WMV: Format Comparison
Key differences between the two formats
| Feature | MKV (Matroska) | WMV |
|---|---|---|
| Full Name | Matroska Video | Windows Media Video |
| Developer | Open source | Microsoft |
| License | Open/free | Proprietary |
| Video Codec | H.264, H.265, VP9, AV1 | WMV9 / VC-1 |
| Audio Codec | AAC, FLAC, AC-3, Vorbis | WMA, WMA Pro |
| Windows Native | Requires codec or VLC | Yes, plays in Windows Media Player |
| Subtitle Support | Extensive (SRT, ASS, PGS) | Very limited |
| File Size | Efficient with modern codecs | Moderate |
When to Convert
Common scenarios where this conversion is useful
Windows Media Player Playback
Convert MKV downloads to WMV so they play natively in Windows Media Player on older Windows machines without needing codec packs or VLC.
Legacy Windows Software
Supply WMV files to older Windows applications, kiosks, or embedded systems that support WMV but not modern MKV containers.
Corporate Intranet Video Sharing
Share video content over corporate Windows networks in WMV format, which Windows systems handle without additional software installation.
Windows Presentation Embedding
Embed WMV video in older Microsoft Office presentations that don't support MKV playback.
Windows DVD Authoring
Convert MKV source files to WMV for use with Windows DVD Maker, which works reliably with Windows-native video formats.
How to Convert Matroska to WMV
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1
Upload Your MKV File
Drag your Matroska MKV or click to browse and select it. Your file is transmitted over an encrypted HTTPS connection to our conversion servers.
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2
Convert MKV to WMV with FFmpeg
FFmpeg re-encodes your MKV video using VC-1 (WMV9) encoding with WMA audio, producing a WMV file fully compatible with Windows Media Player.
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3
Download the WMV File
Your WMV is ready for download once conversion completes. The original MKV is automatically and permanently deleted from our servers.
Frequently Asked Questions
WMV plays natively in Windows Media Player without codec packs or third-party software. It's ideal for Windows environments where MKV playback requires VLC or codec installation.
No. ChangeThisFile runs in your browser and converts the file on our servers. No plugins, codec packs, or software downloads needed.
MKV chapter information is not preserved in the WMV output. The video content itself is fully converted, but container-level metadata like chapters is dropped.
Only the primary audio track is included in the WMV output. WMV does not support multiple audio tracks the way MKV does.
Converting from H.264/H.265 in MKV to VC-1 in WMV involves re-encoding, which introduces some quality loss. ChangeThisFile uses FFmpeg's best quality settings to minimize this.
50MB is the maximum upload size. For larger MKV files, trim or downscale the video before uploading.
Your MKV file is encrypted in transit (HTTPS) and deleted automatically from our servers immediately after your download. We do not retain any content.
WMV playback on Mac requires VLC or Perian. It is a Windows-native format. If Mac compatibility is needed, convert to MP4 instead.
Yes. WMV using VC-1 encoding supports HD up to 1080p. Output resolution matches your source MKV.
Yes. ChangeThisFile is free with no watermarks, no subscriptions, and no signup required.
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