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First, choose the MP4 file you want to convert from your PC, Mac, or mobile device using the file selector.
Select MKV as your target format, then adjust the video codec and quality settings according to your needs.
Once your file and options are configured, click the Upload button to start sending and converting your MP4 video.
When the conversion is complete, VideoEnds will send you a download link by email. Use the link to save your converted MKV video.
MP4 (MPEG-4 Part 14) is the world's most widely used video container format. It combines excellent video quality with efficient compression, making it the preferred choice for streaming platforms, social media, mobile devices and web browsers.
MP4 supports modern codecs such as H.264, H.265 (HEVC) and AV1, together with popular audio formats including AAC and AC-3. Thanks to its broad compatibility, MP4 files can be played on almost every operating system, smart TV, smartphone and media player without additional software.
If you are looking for the best balance between compatibility, quality and file size, MP4 is usually the recommended output format for everyday use, online sharing and video publishing.
MKV (Matroska Video) is an open-standard, free container format that can hold an unlimited number of video, audio, picture or subtitle tracks in one file.
It is widely used for storing high-definition movies and multimedia content thanks to its support for advanced features like chapter markers, metadata and soft subtitles. MKV is especially popular for archiving and media servers.
While MKV is extremely flexible, not all devices and browsers support it natively. Converting MKV to MP4 ensures seamless playback on mobile devices, smart TVs and online platforms.