ZK Licensing
ZK is offered in 3 editions, CE, PE and EE, with different features and licensing models to meet different needs.
Below is a summarized table:
ZK CE
ZK CE, licensed under LGPL offers the community the ability to use ZK CE wherever they please, including open source and commercial applications.
With this freedom we want ZK CE to be the centerpiece of our community.
Therefore, we work closely with community members to achieve the common goal of creating a better platform in which all parties can leverage.
ZK PE and EE
ZK Commercial License
ZK PE and EE are available under a commercial license providing the scalability, performance, testing and support that enterprise application deployments require. Both editions have been deemed certified to deliver enterprise-level capabilities to meet the needs of even the most demanding organizations.
Commercial License is the suitable option if you wish not to open source your application. For more information on pricing, please visit the pricing page.
ZK Open Source License (ZOL)
As we have strong belief in the community, we have therefore also made PE and EE's certified performance freely available to projects which are open source, under ZK Open Source License.
ZOL is a free ZK license for open source projects. If your project is open source, please contact us to claim your free ZOL for PE or EE.
If you would like to know why you should use ZK EE please click here
ZK Tools, Extensions and Components
ZK Tools, Extensions and Components also offered under different licensing models for different purposes.
Most of the add-ons are available under open source licenses, free for using in compatible projects while commercial license is the suitable option if you wish not to open source your application or if your project is not compatible to the corresponding open source license we offer. For more information on pricing, please visit the pricing page.
ZK Tools |
License |
ZK Studio |
Free to use, non-open source |
ZATS Mimic |
GPL or Commercial |
ZK Extensions |
License |
ZK Spring |
GPL or Commercial |
ZK JSP Tags |
GPL or Commercial |
ZK Components |
License |
ZK Calendar |
GPL or Commercial |
ZK Charts |
Commercial |
ZK CKEditor |
LGPL or MPL1 |
ZK GMaps |
GPL or Commercial |
ZK Pivottable |
Commercial |
Keikai Spreadsheet OSE |
GPL2 |
Keikai Spreadsheet EE |
Commercial2 |
ZK Themes |
License |
ZK Atlantic Theme |
GPL or Commercial |
ZK Bootstrap Add-on |
GPL or Commercial |
ZK Theme Pack (23 themes) |
Commercial |
1. ZK CKEditor is LGPL/MPL licensed. If you have any question on CKEditor's license please consult with corresponding 3rd party vendor directly.
2. ZK Spreadsheet is now Keikai Spreadsheet.
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