WMV to MKV Converter
Convert your WMV video into high-quality MKV format with 100% Secure processing. No files are uploaded to our servers.
or drag and drop your WMV files here
Popular WMV Conversions
Direct 1-Click Fast PresetsHow to Convert WMV to MKV?
Convert your video files in seconds with zero software installation and 100% Secure local processing.
Select WMV Video
Click the "Choose WMV Files" button or drag and drop your WMV video file into the drop zone.
Configure Target & Settings
Verify that MKV is selected. Adjust optional parameters (such as frame rate), then click "Convert to MKV".
Instant Secure Download
Once the 100% Secure conversion finishes locally in memory, click "Download MKV" to save your file immediately.
WMV (Windows Media Video)
Source FormatWhat is a WMV file?
WMV is a video compression format developed by Microsoft for the Windows platform. It was originally designed for internet streaming applications and integrates tightly with Windows Media Player.
How to open a WMV file?
Opens natively in Windows Media Player and VLC.
MKV (Matroska Multimedia Container)
Target OutputWhat is a MKV file?
MKV is an open-standard, flexible video container that can hold an unlimited number of video, audio, picture, or subtitle tracks inside one file. It is widely used for high-definition video distribution.
How to open a MKV file?
Can be played using VLC Media Player, KMPlayer, PotPlayer, or easily converted to universal MP4 format right here.
Your Videos Never Touch Our Servers
Video files often contain personal moments, family memories, or confidential business recordings. SM Convert processes every video locally using your computer's secure memory and WebAssembly engine. No uploads, zero cloud servers, complete privacy.
100% Client-Side
Executed locally in RAM
Instant Audio Extraction
Extract MP3/WAV in seconds
Unlimited & Free
No subscription fees or quotas
Other WMV Video Converters
Convert Other Video Formats to MKV
Frequently Asked Questions (FAQs)
How can I convert videos to MP4 or WebM online?
Simply drag and drop your video file (MOV, MKV, AVI, etc.) into the converter above, choose MP4 or WebM as your output format, and click "Convert Video". The conversion processes locally on your computer with zero server uploads.
How can I extract audio (MP3/WAV) from my video?
Select your video (MP4, MOV, WebM, etc.), choose MP3 or WAV in the format dropdown, and click convert. The audio track is separated and saved locally in seconds.
What is the maximum video file size I can convert?
Because processing runs locally with 100% Secure execution without server uploads, files under 200 MB to 500 MB convert with optimal speed and performance depending on your device's available RAM.
Are my video files stored on any cloud server?
Never. Your video files are processed strictly inside your device's secure memory using WebAssembly and Web Audio APIs. They are never transmitted over the internet or saved to any external hard drives.