18 votes
MJS File - What is an .mjs file and how do I open it?
Learn about .MJS files and view a list of programs that open them.
Languages
Overview
What is an MJS 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.
More Information 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.
Document Icon
Breadcrumbs
DeveloperN/A
Popularity4.1 | 18 Votes
Previous / Next
In-Depth
.MJS File Extension
Node.js ES Module File
| Developer | N/A |
| Popularity |
4.1 | 18 Votes |
What is an MJS 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.
More Information
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.
Open over 400 file formats with File Viewer Plus . Free Download
Programs that open MJS files
Sort
Pricing
Program Name
Platform
Reset
X
Windows
Adobe Dreamweaver 2021
Free Trial
Microsoft Visual Studio 2022
Free +
GitHub Atom
—
Discontinued
Free
Sublime Text
Free Trial
Vim
Free
GNU Emacs
Free
Other text editor
Mac
Adobe Dreamweaver 2021
Free Trial
GitHub Atom
—
Discontinued
Free
Sublime Text
Free Trial
Apple Xcode
Free
Vim
Free
GNU Emacs
Free
Other text editor
Linux
Any text editor
Category: Web Files
Updated: November 8, 2018