What language is NetSuite written in?

NetSuite is written in the Java programming language. Java is a versatile and powerful programming language that enables developers to create robust, scalable applications.


NetSuite’s SuiteScript programming environment enables developers to extend NetSuite’s core functionality and build custom applications. SuiteScript is based on JavaScript, a popular scripting language that is used to create interactive web pages.


If you’re interested in learning more about NetSuite’s SuiteScript programming environment, we encourage you to check out our blog. Our blog covers a variety of topics, including an introduction to SuiteScript, the difference between user event scripts and scheduled scripts, and how to debug SuiteScript code.