MP4 to MKV Converter
Convert your MP4 videos to MKV format. MKV (Matroska Video) is a flexible container that supports multiple audio tracks, subtitles, chapters, and metadata. Video conversions run on our secure server, and your file is deleted after conversion.
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Drag and drop your file below to start converting. Images, audio, and documents are processed privately in your browser; video is handled on a secure server and deleted after conversion.
After selecting a file, you'll be taken to the converter where you can choose your output format and download the result.
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Frequently Asked Questions
What makes MKV different from MP4?
MKV is a more flexible container format that can hold unlimited video, audio, and subtitle tracks in one file. MP4 is more widely supported but has more limited track capabilities.
Can MKV play on smart TVs?
Many modern smart TVs and streaming devices support MKV playback. For older devices, MP4 format is recommended for better compatibility.
Why would I convert MP4 to MKV?
Convert to MKV when you need to preserve multiple audio tracks (different languages) or embedded subtitles. MKV is ideal for archiving movies and complex video content.
Is my video file uploaded to a server?
Yes, for video conversions. Your file is uploaded to a secure conversion server, processed, and then deleted automatically after you download the result. Images, audio, and documents are always processed locally in your browser.
Privacy First
Images, audio, and documents are processed locally in your browser. Video files are uploaded to a secure conversion server and deleted after conversion. No accounts, no tracking, no data collection. Built by Nexora Creation.