JS File

What are JS files and how to open them

Are you having problems opening a JS file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your JS files.

What is a JS file?

A .JS file is a Javascript Source Code file.

Files containing the .js extension are most commonly associated with JavaScript files. These JS files contain JavaScript code that is used to execute instructions in a Web page that uses client-side scripting.

The functions may include the validation of form fields, rollover images, drop-down menu creation and other functions.

The .js file extension is also used for JACOsub script files, JetScript output files, Netscape settings files and ECMAScript language files.

How to open JS files

We have identified three JS openers that are compatible with this specific type of JS file.

Programs that open Javascript Source Code files

Last updated: September 27, 2023

Various apps that use files with this extension

These apps are known to open certain types of JS files. Remember, different programs may use JS files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about JS file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.