MacJournal document file
File type: Document file
A .mjdoc file is a document used by MacJournal, a journaling and note-taking application for Apple macOS.
It contains a saved MacJournal document and is intended to be opened and edited in MacJournal.
File type category:
Document file
Date updated: September 24, 2026
MacJournal is a journaling application for macOS, formerly known as Mac OS X. The .mjdoc file is its native document format for storing saved journal or note content.
The format is designed for use within MacJournal rather than as a general-purpose interchange format. Information that belongs to the MacJournal document may not be preserved when the content is opened in another application.
MacJournal remains the relevant software for this format on Apple macOS.
Open the .mjdoc file in MacJournal on macOS. You can usually double-click the file if MacJournal is installed and associated with the file extension, or open it from MacJournal's file menu.
Other applications may not be able to interpret the file as a MacJournal document.
Open the file in MacJournal and use its export or save commands to create a copy in a format supported by that installation. Exporting the document is the practical way to obtain text or other shareable content.
Conversion to another format may not preserve all MacJournal-specific information, so keep the original .mjdoc file if it may be needed for later editing in MacJournal.
Software applications that can open mjdoc files:
Apple macOS / Mac OS X
Software applications that can edit mjdoc files:
Apple macOS / Mac OS X
Software capable of saving mjdoc files:
Apple macOS / Mac OS X
Software apps that create mjdoc files:
Apple macOS / Mac OS X
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