MKV converter
MKV is a flexible container with multiple tracks and subtitles. For phones, TVs and social networks it is converted to MP4, for the web to WebM, and for Apple to MOV.
Convert from MKV
Convert to MKV
Why convert MKV
MKV does not always open on iPhone, TVs and social networks. MP4 with H.264/AAC solves the compatibility problem.
Which format to choose
MP4 is the universal option. WebM is for websites and modern browsers. MOV is for QuickTime and Final Cut.
Format questions
Are subtitles preserved?
The current version transfers the main video track and the main audio. Subtitles and additional tracks are not preserved.
Why does MKV not open on iPhone?
iPhone does not support the MKV container and some codecs. MP4 with H.264/AAC opens without extra apps.
Other formats
Useful guides
VideoWhat is MKV?Learn what MKV is, how it differs from MP4, why it does not open on a phone, and how to convert MKV to MP4, WebM or MOV.1 min readVideoVideo formats explainedCompare popular video formats: compatibility, compression and use cases. Learn when to convert video to MP4, WebM or GIF.2 min read