JavaFX In Action #20 with Dirk Lemmermann, Creator of JavaFX Libraries and Applications

May 29, 2025

Dirk Lemmermann has created many open source and commercial libraries for Java Swing and JavaFX like CalenderFX, FlexGanttFX, GemsFX,… He is also the founder of JFX Central, the home to anything JavaFX related. In this interview he shows us some of his work, including applications used in companies, revealing the power of JavaFX to build custom tools.

About Dirk

Dirk Lemmermann has over 40 years of programming and 30 years of professional experience. He is a seasoned and passionate software engineer and leader with a master’s degree in computer science and multiple honors and awards for his work in UI development and design, tool development, and scheduling applications.

As the CEO of Senapt and DLSC, he oversees the development of CRM systems for energy suppliers in England and Java and JavaFX consulting and software development for various domains and applications. His mission is to deliver high-quality, innovative, and user-friendly solutions that meet the needs and expectations of his clients and partners.

You can find him on:

Libraries

Dirk has created, or contributed to, a lot of libraries, and most of them are available as open source libraries!

JFX Central

JFX Central, the home to anything JavaFX related, is a website, desktop application, and mobile app, all based on the same code base. Both the tool itself, as the data it uses, are open source projects.

Senapt Applications

Senapt provides “Energy-as-a-Service Platform”, by providing an energy transactions platform for energy sellers and energy buyers in the UK. As the energy landscape has continued to change, retail electricity providers have been looking for strategies to meet the ever-growing, ever-changing demands for their customers. Senapt’s products have been designed to help energy suppliers to facilitate this changing relationship and allow them to seize the opportunities of the smart grid.