The Java Network Launch Protocol (JNLP) enables an application to be launched on a client desktop by using resources that are hosted on a remote web server. Java Plug-in software and Java Web Start software are considered JNLP clients because they can launch remotely hosted applets and applications on a client desktop.

What opens a JNLP file?

You can open and edit a JNLP file in any text or source code editor, such as Microsoft Visual Studio Code or GitHub Atom. Source code editors contain syntax highlighting tools that make reading and editing JNLP files easier.

How do I run a JNLP program?

Right-click a JNLP file and click “Open With.” Select the “Java Web Start Launcher” application in the list or click “Browse,” browse to the “C:\Program Files (x86)\Java\jre[version]\bin” folder on your computer and double-click the “Javaws.exe” program file.

How do I enable JNLP in Chrome?

Right-click the JNLP file on the bar at the bottom of the Google Chrome window and select “Always Open Files of This Type.” After you set this preference, Google Chrome will open JNLP files when you click a “Launch” button on a page.

Is Java Web Start still used?

Oracle will continue to commercially support Java Web Start on Java SE 8 for commercial use, or when used in conjunction with Oracle products that have a Web Start dependency, through at least March, 2025.

How do I install Java web launcher?


  1. Install IBM Application Client for WebSphere Application Server.
  2. Change your directory to the javaws path. …
  3. Run the update settings script from the path mentioned in the previous step. …
  4. Change your path to the JWS installed path. …
  5. Run javaws from the path mentioned in the previous step.

Why is JNLP not launching?

Misconfigured file type association or missing Java Runtime Environment can lead to JNLP file not opening problems. Windows 64-bit users may require to install the 64-bit JRE version on top of their existing JRE installation. You can also set the default app for JNLP file type from the Default Apps settings.

How do I open a JNLP file in Windows 11?

How to Open JNLP files

  1. Navigate to its current location.
  2. Right-click on your JNLP file.
  3. Select Open with.
  4. Then, select the text editor you want to use. Let’s say it’s Notepad++.
  5. The editor will then open the file in a new window. You can now edit it.

How do I install Java on windows10?

Use the latest browser recommended by Microsoft

  1. Open Internet Explorer icon and go to
  2. Select the Free Java Download button, and then select Agree and Start Free Download. …
  3. On the notification bar, select Run. …
  4. Select Install > Close.

What can I use instead of Java Web Start?

OWL is open source

Rocket Open Web Launch (OWL) is an open-source solution that’s easy to set up, easy to use, and available to anyone who needs it. It’s designed to run any application as configured in its JNLP file against a Java version which may no longer officially support Java Web Start.

What is JNLP file in Java?

The JNLP file specifies the name of the main JAR file, the version of Java Runtime Environment software that is required to run the RIA, name and display information, optional packages, runtime parameters, system properties, and so on.

What is Java Web Start used for?

Java Web Start is an application-deployment technology that gives you the power to launch full-featured applications with a single click from your Web browser.

How do I run a JNLP file in Windows 10?

#1) Windows 10

  1. From the list of extensions, select JNLP.
  2. Select Change Program.
  3. If the proper Java application doesn’t show automatically, then choose the More Apps option.
  4. Now look for another app on this PC.
  5. Go to the Program Files (x86) folder.
  6. Click on the Java folder.
  7. Open the latest version of JRE you have.

How do I create a JNLP file?

Create a Jnlp file. Put all into Tomcat Folder.

  1. Install JDk and Tomcat. Install Java JDK/JRE version above 1.5 and Tomcat.
  2. Directory Structure. Directory structure of this example.
  3. AWT + Jnlp. See the content of TestJnlp. …
  4. Jar It. …
  5. Create keystore. …
  6. Assign keystore to Jar file. …
  7. Deploy JAR it. …
  8. Create JNLP file.

How do I run a JNLP file in command prompt?


  1. Select a link on a Web page that refers to a . jnlp file. …
  2. At a shell or command prompt, type: javaws <URL> …
  3. If you have used Java Web Start to open the application in the past, use the Java Application Cache Viewer. At a shell or command prompt, type: install_dir /jre/bin/javaws -viewer.

Where is Java located windows?

C:/Program Files/Java

On Windows, Java is usually installed in the directory C:/Program Files/Java. You can check if this folder exists. If the folder does not exist, we can’t be sure that Java is not installed on your computer. It could have been installed in a different path.

Where is JNLP file located?

Click on Start and select Control Panel from the Settings menu (or click Start and select Control Panel). In the control panel, click Folder Options . In the Folder Options window, click the File Types tab. Locate JNLP under the list of registered file types.

How do I enable JNLP in Firefox?

Open Firefox and select ‘Options’. 3. Under the ‘General’ category, scroll down to the ‘Applications’ section. Click the drop down menu for ‘JNLP files’ and select ‘Use Java Web Start Launcher’.

How do I run Java in Firefox?

Enable Java in Firefox

  1. Launch the Firefox web browser. Click or double-click the Firefox app icon, which resembles an orange fox around a blue globe. …
  2. Go to a site that uses Java. …
  3. Now wait for the Java prompt to appear. …
  4. Click the “Activate Java” link. …
  5. Click “Allow Now” when prompted.

Can you download Java for free?

Visit the Java website and download the installer

To install Java, you first need to download the installer program from Oracle. Click the “Free Java Download” button. You are then prompted to read and agree with the end user license agreement.

How do I automatically open JNLP files in edge?

2 Answers

  1. Open Group Policy panel.
  2. User Configuration -> Administrative Templates -> Microsoft Edge.
  3. Find list of file types that should be automatically opened on download -> Enable and add JNLP value to options.
  4. Apply this policy setting.

Does Java work in edge Chromium?

Does Microsoft Edge (Chromium-based) support ActiveX controls or BHOs like Silverlight or Java? No. Microsoft Edge doesn’t support ActiveX controls or Browser Help Objects (BHOs) like Silverlight or Java.

How do I unblock a JNLP file in edge?

Select the ‘Security tab’, click the [Edit Site List] button, and add to the Exception Site List. 4. Select the ‘Advanced’ tab, click the ‘Always allow’ radio button under JNLP File/MIME Association, and click [OK].

How do I stop Microsoft edge from blocking downloads?

Check your Edge settings: click ⋯ (Settings and more) > Settings > Privacy, search and services and turn the options under Security On.