Convert WMV to MKV for Multi-Track Archival
Convert your Windows Media Video files to Matroska Video online for free. WMV is not supported on Mac, Linux, or mobile devices without additional codecs or conversion — MKV solves that. No registration, no watermarks, instant download.
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Max 100 MB • Max 10 min duration • Max 1080p
How to Convert WMV to MKV — 3 Steps
FFmpeg re-encodes your WMV file to H.264, H.265, or VP9 MKV — multi-track archival.
Upload your WMV file
Select your WMV file from Windows Movie Maker. Files up to 100 MB and 10 minutes in duration are accepted.
Confirm and convert
Confirm you own the file and click Convert to MKV. Processing typically completes in under 60 seconds.
Download your MKV file
Download your MKV immediately — ready to store multiple audio tracks (e.g. different languages) in one file.
Why Convert WMV to MKV?
WMV (Windows Media Video) is not supported on Mac, Linux, or mobile devices without additional codecs or conversion. Converting to MKV gives you multi-track and subtitles.
Frequently Asked Questions
Why convert WMV to MKV?
WMV (Windows Media Video) is not supported on Mac, Linux, or mobile devices without additional codecs or conversion. Converting to MKV gives you store multiple audio tracks (e.g. different languages) in one file.
Will I lose video quality converting WMV to MKV?
Our converter outputs H.264, H.265, or VP9 video at high-quality settings. When re-encoding is required, we use settings that minimise visible artefacts. The resulting MKV file will be visually very close to the original.
What WMV files can I upload?
You can upload WMV files from Windows Movie Maker, old Microsoft screen recorders, and corporate training video tools. Files must be under 100 MB, under 10 minutes in duration, and not exceed 1080p resolution.
What is the maximum file size for WMV to MKV conversion?
The maximum upload size is 100 MB and the maximum video duration is 10 minutes. Resolution is capped at 1920×1080 (1080p).
Is my WMV file kept private?
Yes. Files are processed privately and automatically deleted within 60 minutes. We never store, sell, or analyse your content.
WMV & MKV Format Guides
Understand the formats you're converting between — specs, pros, cons, and use cases.
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