Alternative to Excelsior JET

On May 15th, 2019, Excelsior announced in an email sent to their clients that they would stop supporting Excelsior JET. The next day, they also announced on their website that their engineering team would fully depart within approximately two weeks ("early June 2019") and that the download site would be offline by mid-June (within approximately four weeks).

Protector4J is far more than just a substitute for Excelsior JET

Protector4J protects your Java source code by converting jar files into private encrypted jarx files. We employ various methods to ensure the security of your application, both at the JVM level and the binary level. This provides a high level of application protection. You can click on this article: and find out how Protector4J works.

Protector4J can also help you create executable programs for your Java applications on Windows, Linux, and macOS.