Opening an MJ File

The MJ file type is primarily associated with MediaJoy.

MJFile Extension MJ
File extension: MJ
File type:  video file

What is an MJ file?

MJ files mostly belong to MediaJoy. MJ files are video files that use the Motion JPEG format. They store video by encoding each frame as an individual JPEG image, making the video a sequence of still images played quickly in order.
  • This file type is common in MediaJoy applications for simple video playback.
  • A variant of MJ files is produced by VideoJet software and is sometimes used as a backup file in systems like DJI FlightHub.
  • FilExt.com note: Playing these files typically requires a media player that supports Motion JPEG, such as VLC or QuickTime. For files associated with DJI FlightHub, using the original DJI software can ensure proper access to embedded flight data.

    How can I open an MJ file?

    You need a suitable software like MediaJoy to open an MJ file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your MJ file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a MJ file directly in the browser:. Just drag the file onto this browser window and drop it.

    Online MJ Text Viewer

    Choose your .mj file to analyze

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    Programs that open and convert MJ files:

    1. MediaJoy
      See the previous paragraphs to learn more about the main application. MJ files are often referred to as MediaJoy videos because this type of file is primarily created or used by this software.
    2. MovieJack DVD Ripper File

    Technical Data for MJ File Extension

    File classification:
    Video
    Related files:

    The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

    ProgramID: RealJukebox.RMJ.1
    EXEFile: %ProgramFiles%\Real\RealOne Player\RealPlay.exe %1

    ProgramID: RealJukebox.RMJ.1
    EXEFile: %ProgramFiles%\Real\RealPlayer\RealPlay.exe %1


    an mj video file is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with MJ files

    • Associate the MJ file extension with the correct application.
    • Update your software that should actually open video files. Because only the current version supports the latest MJ file format. Search, therefore, e.g. on the manufacturer website after an available MediaJoy update.
    • To make sure that your MJ file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
    • Click here to open your .MJ file online - secure, fast, and no downloads needed.
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    MJ file viewer MJ file description