Run Web Start based application after the release of Java 11

Latest news

May 6, 2020:
We officially launched the OpenWebStart support forum. Visit and get your personal account.


Technical questions

Community user
Community Support forum

Premium support customers
Premium Support forum

For commercial questions please write an email at Please do not post technical questions to this email, use the forum instead.

Java Web Start is dead. Long live Java Web Start!

Java Web Start (JWS) was deprecated in Java 9, and starting with Java 11, Oracle removed JWS from their JDK distributions. This means that clients that have the latest version of Java installed can no longer use JWS-based applications. And since public support of Java 8 has ended in Q2/2019, companies no longer get any updates and security fixes for Java Web Start.

This is why we decided to create OpenWebStart, an open source reimplementation of the Java Web Start technology. Our replacement provides the most commonly used features of Java Web Start and the JNLP standard, so that your customers can continue using applications based on Java Web Start and JNLP without any change.

The main focus of OpenWebStart is the execution of JNLP-based applications. Additionally, the tool contains four modules that simplify your Web Start workflows and let you configure OpenWebStart to suit your needs:

  • The App Manager manages the versions of any JNLP-based application that is executed by OpenWebStart.
  • The JVM Manager manages Java versions and Java updates on the client.
  • The Control Panel provides a graphical user interface to configure OpenWebStart.
  • The Updater downloads and installs new versions of OpenWebStart.

You’re a developer and want to take a closer look at our source repo? Visit our GitHub and let us know what you think.


Support the OpenWebStart project

Java and your operating system get updates, and so does OpenWebStart. Thanks to the support of our awesome sponsors, OpenWebStart will be updated and further developed as long as needed.

You can of course use OpenWebStart as an open source solution free of charge but we‘d also like to talk to you about support options to guarantee the lasting development.

Community Support
Basic Support & Sponsoring
  • Special communication channel to report bugs (via support forum)
  • Bugs have a higher priority but no guaranteed service levels
  • 10% discount for development of individual features
  • Company logo can be published on OpenWebStart sponsor page (basic sponsor)
Premium Support & Sponsoring
  • Premium communication channel for bug reports (via support forum)
  • Bugs have highest priority
  • Guaranteed service levels depending on severity of bug (during business hours)
  • After bug fix, we provide a corresponding release
  • 25% discount for development of individual features
  • Company logo can be published on OpenWebStart sponsor page (premium sponsor)

Talk to us about your individual support package at


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