JS file extension - JavaScript source code script
What is js file? How to open js files?
File extension js is generally mainly related to JavaScript scripting language and used for files that contain JavaScript language source code. JavaScript was standardized in the ECMAScript language specification.
Mostly used for client-side scripting on internet webpages.
The JavaScript Document object is the container for all HTML HEAD and BODY objects associated within the HTML tags of an HTML document.
Note: Since January 2017, Gmail blocks .js files in attachments because they are often used to distributed ransomware or other malicious software.
MIME types used for JavaScript .js script files:
application/x-javascript
text/javascript
application/javascript
Updated: January 2, 2025
The default software associated to open js file:
Company or developer:
Sublime HQ Pty Ltd
Sublime Text is an advanced text editor for writing source codes in various programming languages. It is an excellent tool for programmers and offers great features and performance. It is available for Microsoft Windows, macOS, and Linux operating systems.
Company or developer:
Microsoft Corporation
Visual Studio Code is integrated development tool for creating web and cloud software available for Linux, Mac OS X (macOS), and Windows.
List of software applications associated to the .js file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open js file, edit js file, convert js file, view js file, play js file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting js files.
Software that open js file - JavaScript source code script
Programs supporting the exension js on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open js file action.
Microsoft Windows:
Main software associated with js file by default: Sublime Text
Other suggested software: NotePad++ text editor
Eclipse
Adobe Dreamweaver
Microsoft Edge