Click the "Select File" button above, and choose your MJS file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert MJS to another file type
To convert your MJS file to another format, you need Node.js or other Developer software.
Convert a file to MJS
To convert other file formats to the "Source Code" file type, you need software like Node.js or a similar tool.
About MJS files
The .mjs file extension represents a Node.js ES Module, a specialized text file containing JavaScript source code written in the modern ECMAScript standard. Unlike traditional JS files (which Node.js often treats as CommonJS), .mjs strictly enforces ES Module parsing, enabling features like import and export statements natively. While crucial for modern backend development, these files can be problematic: double-clicking them often fails to launch an editor on Windows, legacy web servers may serve them with incorrect MIME types, and older Node.js versions may not execute them. Practical conversion solutions include changing them to standard JS for broader compatibility (often requiring a package.json adjustment), converting to TXT for quick viewing without an IDE, or converting to PDF for non-editable code documentation and archiving.
Convert.Guru analyzes your MJS file, detects the exact format, and lets you read the text inside.
If you want to convert MJS file to JS, TS, JPG, JSON, HTML, HTM, CSS, PHP, ASP, ASPX, JSP or JSPX, you can use Node.js or similar software from the "Modular JavaScript Source Code" category. In the File menu, look for Save As… or Export….
To convert RSS, CSS, CGI, SITEMAP, PL, WEBMANIFEST, JSON, JS, XML, HTML, ICO or HTM files to MJS, try Node.js or another comparable tool in the "Modular JavaScript Source Code" category.
The MJS Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our MJS converter.