JST File Extension

JavaServer Page Document

File Type jst
Developer Oracle
Popularity
4.2 (36 votes)
Application Adobe Dreamweaver
Category Web Files

What is a JST file?

The JST extension is related to JavaServer Page Document and is classified in the Web Files category, which contains 283 files.

The JavaServer Page Document (JST), created by Oracle, is one of file format they developed, and they also built 36 programs to support them.

JST file support extends to various operating systems, including Windows, Mac OS and Linux. When working with JST files, you can rely on 4 programs, including Adobe Dreamweaver, Java and Internet Explorer.

Windows

Mac OS

Linux

Java

How to open a JST file?

If you can’t open a JST file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.

Thanks to their popularity, Adobe Dreamweaver, Java and Internet Explorer are often the go-to programs for managing JST files. If you need the newest version of Adobe Dreamweaver, just access the Adobe website. From there you can download the installer compatible with all systems.

Once setup is done, your operating system should assign Adobe Dreamweaver as the default app for JST files.

Set Adobe Dreamweaver as the default JST handler

Choose an app to open a file on Mac

Right click or use Control + left click on the desired JST file to launch the file options menu;
Choose "Open in Application" and click "Other";
Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
In this menu, choose "All Programs" and navigate to Adobe Dreamweaver. Check the box next to "Always open in app" to make it the default program.

Change a default app in Windows

Take the first step by right-clicking on your JST file. Next, select "Open With" and then choose "Choose another app" from the available options;
In the pop-up window, find and select the Adobe Dreamweaver application from the available options;
Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening JST files.

Effective solutions for JST file problems

If you encounter issues with JST files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.

What can lead to sudden Adobe Dreamweaver crashes?

Lack of software updates is a possible reason behind Adobe Dreamweaver crash. Keep your Adobe products up to date by installing the latest updates.

Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.

What is the recommended approach to repair a damaged JST file?

In a data recovery program, open the damaged JST file and select the "Repair" menu option. Wait for the recovery process to finish, allowing automatic repair of damaged web files.

How do I know if my JST file has been damaged?

Characteristics of corrupted JST web files can include:

Error alerts occur when actions are performed on the file;
Editing the archive in Adobe Dreamweaver is hampered by poor overall performance;
The file does not respond or shows errors when opening it;
Unexplained JST file size inflation;
The file stops responding or freezes in Adobe Dreamweaver or other programs;

How to edit a JST file?

To modify JST files, you need to install special software that makes it possible to open and edit web files. Online JST editors are more restricted compared to software designed for JavaServer Page Document.

Best JST Editor Software in 2026

Following these criteria, we have put together a list of recommended JST editors.

JST Editor Software	Developer	Platforms	Overall Rating
Adobe Dreamweaver	Adobe	Windows, Mac OS	4.5 out of 5 (38 reviews)

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