Convert WMV to MKV
Convert WMV video files to MKV format quickly and securely in your browser. Enable advanced features like multiple audio tracks and subtitles. Preserve maximum quality with lossless container format. Add transparency support for advanced video effects.
Complete Privacy Protection
Your videos are processed entirely in your browser using WebAssembly. No files are uploaded to our servers - everything stays on your device.
Upload WMV Video
Drop your WMV video here or click to browse
Supports video/x-ms-wmv • Maximum file size: 1GB
Processing happens entirely in your browser - your videos never leave your device
Why Convert WMV to MKV?
Benefits
- Enable advanced features like multiple audio tracks and subtitles
- Preserve maximum quality with lossless container format
- Add transparency support for advanced video effects.
Common Use Cases
- Multiple audio track preservation
- Subtitle embedding
- High-quality media collections
- Flexible codec storage
Video Format Comparison
WMV(Source)
Microsoft Windows Media Video format
MKV(Target)
Open-source container supporting multiple codecs and subtitles
Frequently Asked Questions
Is it safe to convert WMV to MKV online?
Absolutely! Our video converter runs entirely in your browser using WebAssembly. Your video files never leave your device - they're processed locally for complete privacy and security.
What's the maximum file size I can convert?
You can convert video files up to 1GB in size. Since processing happens in your browser, larger files may take longer and use more system resources.
Will I lose video quality when converting to MKV?
MKV can preserve original quality with lossless compression. You can adjust quality settings to balance file size and visual quality.
How long does video conversion take?
Conversion time depends on your device's processing power and the video's size/length. The first conversion downloads the video processor (~25MB), but subsequent conversions are much faster. Expect 1-3x the video's duration for processing time.
What video codecs are supported?
Our converter supports modern codecs like H.264, VP9, and AAC audio. This covers the vast majority of video files including MP4, AVI, MOV, WebM, and other popular formats.
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