> ZK is an open source Java framework for Ajax web applications by Potix: what it does on a site and what it means for cookies and GDPR consent. > > Canonical: https://www.flowconsent.com/en/services/framework/zk Frameworks # ZK Unclassified · [Official website](https://zkoss.org) ZK is an open source Java web framework developed by Potix Corporation for building rich web applications with server-side components and Ajax. Developers describe interfaces in ZUML markup or Java, and ZK keeps the browser and server in sync. Like most Java web applications, it relies on a session cookie that is needed for the application to work. 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