File Extension Library


.MJS File Extension

  • Category: Web Files
  • Format: Text

What are .MJS files and how to open them?

Can't open .MJS file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .MJS file.

What is a .MJS file extension?

.MJS file extension has been classified as Web Files. The format of .MJS file is Text

.MJS is Node.js ES Module File

An MJS file is a source code file containing an ES Module (ECMAScript Module) for use with a Node.js application. MJS files are written in JavaScript, and may also use the .JS extension outside of the Node.js context. ES Modules allow web and application developers to organize code into smaller reusable components.

ECMAScript 6 (ES6) introduced the specification for ES Modules, providing a standard for implementing modules in JavaScript. As of 2018, all major web browsers support ES Modules.

However, the popularity of modularized JavaScript pre-dates ES6. Node.js, a JavaScript runtime environment, used CommonJS as the specification for modules. Because so many existing applications were built with CommonJS, when Node.js added support for native ES modules, it controversially introduced the MJS file extension to differentiate the two and prevent applications from breaking.

NOTE: Some developers informally refer to MJS files as "Michael Jackson Script" files.

List of all softwares that can open the Node.js ES Module File
Windows
Adobe Dreamweaver CC 2019
Microsoft Visual Studio 2017
GitHub Atom
Sublime Text
Vim
GNU Emacs
Mac
Adobe Dreamweaver CC 2019
GitHub Atom
Sublime Text
Apple Xcode
Vim
GNU Emacs

How to fix problems with .MJS files

  1. You need to update the application that you normally use to open .MJS files. Only the latest version of the software supports the current .MJS file format
  2. You need to check the .MJS file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)