H264 to MKV Converter

Batch convert h264 files to mkv online. Change h264 to mkv on Windows, Mac, iPhone and Android in 2 clicks.

Select files for conversion or drag and drop them to the upload area.
Your files are securely protected and available only to you.
All files are automatically deleted from our servers after 1 hour.

How to convert H264 files to MKV online?

Step-by-step instructions for converting h264 files to mkv

Upload H264-file

Click "Choose File" button to select a h264 file on your computer. H264 file size can be up to 100 Mb.

Convert H264 to MKV

Click "Convert" button to start conversion.

Download your MKV

When the conversion process is complete, you can download the MKV file.


  • ❓ How can I convert H264 to MKV?
    First you need to add file for conversion: drag and drop your H264 file or click the "Choose File" button. Then click the "Convert" button. When H264 to MKV conversion is completed, you can download your MKV file.
  • ⏱️ How long does it take to convert H264 to MKV?
    Video conversion takes quite a while. It will probably take you a few minutes to change H264 to MKV.
  • 🛡️ Is it safe to convert H264 to MKV on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including H264 to MKV) is absolutely safe.
  • 💻 Can I convert H264 to MKV on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our H264 to MKV converter works online and does not require software installation.

Information about H264 and MKV file formats

Name H264 MKV
Full name H.264 Video MKV - Matroska
File extension .h264 .mkv, .mk3d, .mka, .mks
MIME type video/x-matroska, audio/x-matroska
Developed by ITU-T, ISO, IEC, VCEG, MPEG www.matroska.org
Type of format Container format
Description H.264 is a video compression standard based on block-oriented, motion-compensated coding. It is by far the most commonly used format for the recording, compressing, and distributing of video content, used by 91% of video industry developers as of September 2019. It supports resolutions up to 8K UHD. The H.264 video format has a broad application range covering all forms of digitally compressed video, from low-bit-rate Internet streaming applications to HDTV broadcast and Digital Cinema applications with nearly lossless coding. The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows.
Technical details Matroska is similar in concept to other containers like AVI, MP4, or Advanced Systems Format (ASF) but is entirely open in specification, with implementations consisting mostly of open-source software.
File conversion H264 conversion MKV conversion
Associated programs VLC media player, Apple QuickTime, MPlayer, Cyberlink PowerDVD VLC Media Player
Wiki https://en.wikipedia.org/wiki/Advanced_Video_Coding https://en.wikipedia.org/wiki/Matroska