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Converts to Matroska on secure servers · first daily conversion free · no signup
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Convert Windows Media Video WMV files to Matroska MKV format for modern media player support, Kodi compatibility, and open-format archiving. ChangeThisFile uses FFmpeg on secure servers — no setup needed.
By ChangeThisFile Team · Last updated: March 2026
ChangeThisFile converts WMV to Matroska using FFmpeg, a professional-grade multimedia framework, to transcode WMV files to Matroska format with optimized codec settings and quality preservation. Free with no signup required. Files are encrypted during transfer and automatically deleted from our servers after conversion.
WMV vs Matroska: Format Comparison
Key differences between the two formats
| Feature | WMV | MKV (Matroska) |
|---|---|---|
| Full Name | Windows Media Video | Matroska Video |
| Developer | Microsoft | Open source (Matroska.org) |
| License | Proprietary | Open/free |
| Video Codec | WMV9 / VC-1 | H.264, H.265, VP9, AV1 |
| Audio Codec | WMA, WMA Pro | AAC, FLAC, AC-3, Opus |
| Subtitle Support | Limited | Extensive (SRT, ASS, PGS) |
| Platform | Windows-centric | Cross-platform (VLC, Kodi, etc.) |
| Media Center Support | Windows only | Kodi, Plex, HTPC players |
When to Convert
Common scenarios where this conversion is useful
Kodi and HTPC Libraries
Convert WMV videos to MKV for use in Kodi, Plex, and other home theater software that treats MKV as the standard container format.
Cross-Platform Video Library
Migrate a Windows Media Video archive to the open Matroska format, enabling playback on Linux, Mac, and any platform with VLC.
Adding Subtitle Tracks
Convert WMV to MKV to take advantage of Matroska's superior subtitle support, then mux in SRT or ASS subtitle tracks using tools like MKVToolNix.
Long-Term Format Archiving
Preserve WMV content in the open Matroska format for future-proof archiving, free from Microsoft's proprietary WMV ecosystem.
Modern Video Player Optimization
Improve compatibility with modern media players like VLC, mpv, and MPC-HC that handle MKV more reliably than WMV.
Who Uses This Conversion
Tailored guidance for different workflows
Content Creators
- Convert WMV footage to Matroska for playback in software and devices that expect the Matroska format
- Transform WMV recordings to Matroska to match the format an existing workflow or player requires
Video Editors
- Convert WMV footage to Matroska for importing into editing software like Premiere or DaVinci Resolve
- Transform WMV project exports to Matroska for client delivery or final distribution
Social Media Managers
- Convert WMV videos to Matroska for compatibility with legacy players or archival systems that use Matroska
- Transform WMV source files to Matroska when a specific tool only accepts Matroska input
How to Convert WMV to Matroska
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1
Upload Your WMV File
Click to browse or drag your Windows Media Video WMV into the uploader. Files are transmitted to our servers over HTTPS encryption.
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2
FFmpeg Converts to Matroska
Our servers use FFmpeg to transcode your WMV's VC-1 video to H.264 and re-encode WMA audio as AAC in the open Matroska MKV container.
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3
Download Your MKV File
Download the Matroska MKV when conversion completes. The original WMV is permanently deleted from our servers immediately after.
Developers: convert via API →
Frequently Asked Questions
MKV is an open, widely-supported container used by VLC, Kodi, Plex, and all major media players. Converting WMV to MKV makes content accessible cross-platform without Windows Media dependencies.
Converting VC-1 (WMV) to H.264 (MKV) involves re-encoding. ChangeThisFile uses FFmpeg's high-quality settings to preserve as much detail as possible.
Yes. MKVToolNix or mkvmerge can mux subtitle files (SRT, ASS, PGS) into the converted MKV, a feature WMV does not support well.
DRM-protected WMV files cannot be converted. This tool only works with unprotected WMV files.
Files up to 25MB (free tier; 100MB with eligible paid browser access) are supported. Trim or compress larger WMV files before uploading.
Yes. Files are uploaded with HTTPS encryption and deleted automatically after your download. No content is retained.
VLC, MPC-HC, Kodi, mpv, PotPlayer, and Windows 11's built-in player all support MKV natively.
Yes. FFmpeg preserves the source WMV resolution and frame rate in the MKV output.
WMA audio is re-encoded as AAC in the MKV container, providing broad media player support.
Yes. ChangeThisFile is 100% free — no accounts, fees, or watermarks.
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Need to convert programmatically?
Use the ChangeThisFile API to convert WMV to Matroska in your app or script. Free tier included.
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