Run Java Web Start in the browser

You can find the Documentation for the CheerpJ JNLP Runner here.

The CheerpJ JNLP Runner can be used to run any Java Web Start application provided in a JNLP file. It is based on the CheerpJ technology, which means that it has extensive support for Java 6, 7 and 8, and can run virtually any application that you could run with a Java Desktop installation.

The CheerpJ JNLP Runner is compatible with Chrome and Edge, as well as any other Chromium-based browser.

CheerpJ allows you to keep running any legacy Java Web Start application that is either impossible or impractical to replace or upgrade, extending the life of your application with minimal investment.

The CheerpJ JNLP Runner extension drastically improves the security profile of your application, by removing the need for a local Java Desktop installation, and by running your JWS application sandboxed within the browser.

No. The CheerpJ JNLP Runner does not have any requirement on the Desktop (and does not need Java to be installed) or on the Server.

Your application can remain unchanged, and you will not need any server side integration.

Yes. You can deploy the CheerpJ JNLP Runner to your organisations’ machines by using Group Policies (GPOs). You can do this on either Chrome or Edge. Further instructions on how to setup your GPOs for CheerpJ are available on the technical documentation.

Yes, we can assist you in self-hosting the CheerpJ JNLP Runner so that your organisation doesn’t need to access the Chrome Web Store or the Edge Add-Ons store.

We can provide a self-hostable version of the CheerpJ JNLP Runner to any organisation that requires it. Please get in touch with Enterprise Sales if you are interested in this.