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Karakun

Karakun AG is a Swiss software development company that maintains OpenWebStart, an open source reimplementation of Java Web Start. OpenWebStart is licensed under the GNU GPL version 2 with the Classpath Exception, with optional paid support plans.

Licensing at a Glance

  • Open source
  • Subscription

  1. OpenWebStart is an open source reimplementation of Java Web Start that runs JNLP-based applications with current Java versions after Oracle removed Java Web Start from its JDK distributions from Java 11.[1]

  2. OpenWebStart is licensed under the GNU General Public License, version 2, with the Classpath Exception.[2]

  3. OpenWebStart can be used free of charge as an open source solution; community usage has public bug fixes only and no guaranteed support.[3]

  4. Paid Developer support is offered to small companies of up to 5 developers and is priced per developer and year.[4]

  5. OpenWebStart releases are built on the IcedTea-Web core functionality.[5]

Products

References

  1. Java Web Start is dead. Long live OpenWebStart! - openwebstart.com · openwebstart.com · retrieved 2026-09-27
  2. OpenWebStart/LICENSE.md at master · karakun/OpenWebStart · github.com · retrieved 2026-09-27
  3. Java Web Start is dead. Long live OpenWebStart! - openwebstart.com · openwebstart.com · retrieved 2026-09-27
  4. Java Web Start is dead. Long live OpenWebStart! - openwebstart.com · openwebstart.com · retrieved 2026-09-27
  5. GitHub - karakun/OpenWebStart: Run Web Start based applications after the release of Java 11 · GitHub · github.com · retrieved 2026-09-27
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