Make Your MKV Collection Play on Any Device
MKV is the format of choice for Blu-ray rips, anime fansubs, and high-quality movie downloads — but your smart TV, game console, or phone might refuse to play it. Converting to MP4 gives you identical video quality in a container that every device on the planet understands.
Why Convert MKV to MP4?
Samsung, LG, and Roku smart TVs frequently reject MKV files or fail to read embedded subtitles, while MP4 plays flawlessly via USB.
Apple devices (iPhone, iPad, Apple TV) have no native MKV support at all — MP4 is the only game in town for the Apple ecosystem.
Streaming to Chromecast or AirPlay works reliably with MP4 but often stutters or fails entirely with MKV containers.
Many MKV-to-MP4 conversions are actually remuxes (container swap only), meaning zero quality loss and near-instant processing.
MKV vs MP4 — Format Comparison
Matroska Multimedia Container (..mkv)
MPEG-4 Part 14 Video (..mp4)
How to Convert MKV to MP4
Upload your MKV video
Drag your MKV file into the converter. We support MKV files with H.264, H.265, VP9, and other common video codecs inside.
Smart conversion in progress
If the MKV already contains H.264/H.265 video, we remux it to MP4 in seconds with no quality loss. Otherwise, we transcode efficiently.
Enjoy universal playback
Download your MP4 and play it on any TV, phone, tablet, or browser without installing VLC or codec packs.
Frequently Asked Questions
Will I lose my multiple audio tracks and subtitle streams?
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MP4 supports multiple audio tracks, so those are preserved. However, MP4 has limited subtitle format support. SRT-style subtitles are kept, but complex ASS/SSA styled subtitles (common in anime) may be simplified or need to be burned in.
Why is the converted MP4 almost the same size as the original MKV?
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When the MKV already contains H.264 or H.265 video, we perform a remux — moving the video and audio streams into an MP4 container without re-encoding. The file size stays virtually identical because no compression is reapplied.
Can I convert a 4K HDR MKV to MP4?
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Yes. H.265 (HEVC) MP4 supports 4K resolution and HDR10 metadata. The conversion preserves your HDR color information for compatible displays.
My MKV has 10-bit color depth — is that preserved?
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For H.265 remuxing, 10-bit color is fully preserved. If transcoding to H.264 is required, 10-bit may be converted to 8-bit for broader device compatibility.
Pro Tips for MKV to MP4 Conversion
If your MKV uses H.264 internally, ask for a remux (no re-encode) to get identical quality at maximum speed.
For anime with styled subtitles (ASS/SSA), consider burning them into the video during conversion so they display correctly on all players.
Keep the original MKV if it contains multiple subtitle languages — MP4 subtitle support is more limited.
Related Conversions
Ready to Convert?
Upload your MKV file above and get your MP4 in seconds. Free, fast, and secure.