File Extension JST

  • Full name
    Java Server Page
  • Developer
  • Popularity
Have you encountered a problem with a JST file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a JST file here. In the further part of this page we have added a list of programs that should open your JST file. It is enough you choose a proper application for your operating system, download and install it.


The extension JST identifies JavaServer Pages. These files are html files that contain additional Java code, a Sun programming language (now Oracle) and / or special predefined instructions. This code is executed on the web server and allows to design dynamic web pages.

The user does not see the actual JST file, but gets sent from the server the generated HTML file, which is then processed and displayed by the browser.

Therein, JST files are similar to asp or php files. The use of JST files requires a JavaServer Pages enabled web server.

A more common extension for JavaServer Pages files is jsp.

Programs which can open a JST file

How to open a JST file? Advice and guidance

Absolutely most often appearing reason that prevents you from opening the JST file is the lack of a proper application to support it in your operating system. It is notably the first thing you need to address. When one of the programs to support a JST file from the list is already installed, you can try to rerun the file. The system should display a message asking you to choose a primary application to support JST files. At this point we are looking for disk space where the application was installed in and we can link it with a JST file. Since then, our operating system will use the selected program to support all JST files.

Other issues

Despite the described problem with JST there may be many more problems. If the existing operations were not effective, get involved with the following matters:

- verify that the JST file is not damaged and that it has been downloaded or copied in whole
- verify that the file has a file extension that has not been intentionally changed (for example, if it do not contain other information than its extension suggests)
- make sure again whether the JST file type is linked in the operating system with a proper program
- make sure that the file is not infected with a virus and you have up to date software and drivers.

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