The File Extensions Database

.JST File Extension

  • Developer by: Jabosoft
  • Category: Game Files

What is an .JST file?

.JST is Jnes Save State

Save file created and used by Jnes, a Nintendo Entertainment System (NES) emulator for Windows; contains a save state of an NES game.

The JST file is the default save state used by Jnes. The emulator also uses the ".js0" to ".js9" extensions for the other 10 save slots that it supports. All save states are located in the \saves subdirectory of Jnes. If you move them from this location Jnes will not read them.

Programs that open Jnes Save State
File Type 2 JavaServer Page Document
Developer by: Oracle Category: Web Files Format: Text

Server-generated Web page written in the JavaServer Page (JSP) language; commonly contains HTML code in addition to the JSP code; compiled into a servlet that is executed by the Java-enable Web server and then delivered to the user as a Web page.

JavaServer Page documents much more commonly use the .JSP extension.

Programs that open JavaServer Page Document
Adobe Dreamweaver CC 2019
Adobe Dreamweaver CC 2019

How to solve problems with JST files

  • Associate the JST file extension with the correct application. On :
    Windows: Right click on any JST file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.JST files". Mac: Right click (or Ctrl-click) the JST file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .JST is Jnes Save State. Because only the current version supports the latest JST file format. Search, therefore, e.g. on the Jabosoft manufacturer website after an available .JST is Jnes Save State update.
  • To make sure that your JST file is not corrupted or virus-infected, get the file again and scan it with antivirus software.