Convert MKV to MP4 Online
Fix compatibility issues. Convert MKV files to universally supported MP4 for playback on TV, mobile, and web.
Upload MKV Video
MKV files up to 500MB
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Supported formats: video/x-matroska, video/mkv
Max file size: 500 MB
Why Convert MKV to MP4?
MKV is common for movies, but MP4 is the standard for playback on TVs, gaming consoles, and mobile devices.
Smart TV Ready
MP4 plays flawlessly on Samsung, LG, Sony, and Roku TVs.
Preserve Quality
Convert without losing visual fidelity thanks to efficient container switching.
Instant Convert
For compatible codecs, conversion is nearly instant.
Frequently Asked Questions
Why convert MKV to MP4?
MKV is a powerful container but isn't supported by many default players (like QuickTime) or mobile devices. MP4 is universally compatible.
Does it support subtitles?
Our basic converter focuses on video/audio streams. If your MKV has hardcoded subtitles, they will be preserved. Soft subtitles might need to be re-added depending on the player.
Is the process fast?
Yes! Since MKV and MP4 often use the same video codecs (H.264), the conversion is usually very fast as it just changes the container format without re-encoding the whole video stream.