Rapid Development
ZK users report an average of 4-16 times of productivity boost. How is it possible? With ZK's server-centric architecture and ready-to-use 200+ components and themes, you can focus on developing your business logic at the server-side and leave everything else such as server-client communication, browser compatibility, networking, security, and even styling to ZK!
Learn more
Dod Logo Deutsche-bank Logo
accenture Logo Sony Logo
Ebay Logo Dreamworks Logo
Bt Logo Oracle Logo
Roche Logo Johns-Hopkins Logo
Telstra Logo Docomo Logo
Barclays Logo 20thcenturyfox Logo
Sun Logo ADP Logo
Emc2 Logo Samsung Logo
Telecom Logo UN Logo
Simply Java
ZK is renowned for "Ajax without JavaScript", enabling developers to build rich Web applications in pure Java. In addition, with programs executed at the server, developers can leverage all the Java technologies, such as Java EE and Spring, while back-end data and services are readily available.
Learn more
Enterprise-level Security
Unlike JavaScript-based solutions where business logic may reside on the client side and can easily be inspected and manipulated; with ZK all business logic is stored and executed at the server meaning increased security for Enterprise applications.
Learn more
Innovative Technology
Since our first release in 2005, ZK has been the leader in the industry: we are the 1st Java framework supporting MVVM pattern, the first PC+Mobile responsive solution that supports write once run everywhere, the first client+server fusion architecture, and the first web spreadsheet component…. Innovation is the driving force that differs us from everyone else and motivates us to be better and better each day.
Learn more
Open Source
We believe open source is the best way to build an open, secure, and trustworthy software that millions can depend on. ZK CE is freely available under the LGPL license, for both open source and commercial projects. Meanwhile ZK EE with advanced features and professional support are available for mission critical projects.
Learn more

ZK Enterprise Package

Everything you need to deliver more than expected.



Better performance, better experience, and greater product


60+ EE-exclusive features including WebSocket, WCAG, Theme Pack, and more


Discuss directly with core ZK engineers to solve your questions and boost productivity