The File Extensions Database

.JNP File Extension

  • Developer by: Oracle
  • Category: Text Files
  • Format: XML

What is an .JNP file?

.JNP is Java Web Start File

Java file that contains instructions for the Java Network Launching Protocol (JNLP); used for launching and managing Java programs or applets from a web browser; can run the associated program if the Java Runtime Environment (JRE) is installed.

JNLP files contain information such as the remote address of the Java program (.JAR file) and the initial class to be run. They are saved in an .XML format and can be viewed or edited with a text editor.

NOTE: The ".jnp" file extension is a three-letter alternative to the more common .JNLP file extension.

Programs that open Java Web Start File
Oracle Java Web Start
Oracle Java Web Start
Oracle Java Web Start
Oracle Java Web Start

How to solve problems with JNP files

  • Associate the JNP file extension with the correct application. On :
    Windows: Right click on any JNP file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.JNP files". Mac: Right click (or Ctrl-click) the JNP 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 .JNP is Java Web Start File. Because only the current version supports the latest JNP file format. Search, therefore, e.g. on the Oracle manufacturer website after an available .JNP is Java Web Start File update.
  • To make sure that your JNP file is not corrupted or virus-infected, get the file again and scan it with antivirus software.