We believe that
User Interfaces are key to your successful application
If something is well constructed, it looks clean, structured and beautiful.
News & Updates
"CaptainCasa-enable" Claude and other AI tools!
CaptainCasa’s Knowledge Center contains a RAG database holding all essential information about CaptainCasa: demos, documentation, JavaDocs. This information is now available through a public MCP interface.
Easily connect Claude (or other AI tools) to this knowledge and they automatically become “CaptainCasa-enabled”!
You may directly create layouts or develop page beans with the support of Claude! – Find details HERE.
CaptainCasa Community Meeting at 11th of June 2026
This year’s community meeting is scheduled for June 11th (Thursday). As usual the meeting will take place in Schwetzingen, close to Heidelberg.
Focus areas in this year are:
- News, updates, best practices
- Usage of AI within the community
- Low Code!
Everyone interested in Web UI technologies for businsess applications is welcome.
Building a Core Banking System from Scratch - and going Live Smoothly
Six months ago, a European bank successfully went live with a fully self-developed core banking system – covering everything from account management and payments to securities trading and accounting.
The team deliberately chose a custom architecture based on Jakarta EE, Kubernetes – and CaptainCasa Enterprise Client for enterprise-grade user interfaces:
💬 “From that point on, user interface development was simply no longer an issue for us.”
In this interview, the CTO and project lead shares insights on:
– Why they decided to build their own banking software
– How they developed ~500 professional UI dialogs without classic frontend teams
– What really matters during a core-system go-live
– And why CaptainCasa turned out to be a decisive game changer
AI supported CaptainCasa Knowledge Center
Take a look into our Knowledge Center – a central point to access detailed information – including an AI prompt that is based on the content of our demos and our documentation:
Start HERE or click into the image. Enter user “demo” and password “demo” in the logon screen.
RapidApp - Tutorial App online available
The application that is created when following our video tutorials is now available as part of our demo workplace. Please take a look!
Start HERE or click into the image. Enter user “demo” and password “demo” in the logon screen.
RapidApp - Introduction
Watch this video for gaining some overview information about CaptainCasa RapidApp.
RapidApp - Video tutorials
A couple of video tutorials are available including:
- setup of project
- creation of first entity
- creation of dialogs
- defining references between entities
- assembling entities
- adding explicit Java code
Take a look into this playlist.
CaptainCasa RapidApp
CaptainCasa RapidApp is the low-code plugin which combines the “Low-Code-Speed” with the “Full-Code-Java-Power”.
It allows you to “1-2-3!” build the skeleton of your application in minutes in order to concentrate on what really matters later on.
Take a look into the following overview information:
CaptainCasa Rapid App summary (en)
CaptainCasa Rapid App Übersicht (de)
CaptainCasa RapidApp is part of the newest CaptainCasa update – please watch out for “1-2-3!” within the tool set.
Use your mobile as input device for your desktop application
Talk into your phone – and the text will be immediately transferred into a text field?
Add a document scan by taking a photo of the document?
Our new component “MOBILELINK” connects your mobile device into your desktop application. Take a look to see and feel how user efficiency can be significantly increased for many scenarios.
Take a look into our "light style"
A new “light style” was introduced – please take a look into our demo – HERE.
Using "HotSwapAgent" for continuous development
From begin on CaptainCasa Enterprise Client provided a Hot Deployment which is based on dynamic class loader concepts. Now there is an alternative which uses the “HotSwapAgent” virtual machine. Read details HERE.
CaptainCasa Enterprise Client
CaptainCasa Enterprise Client is a web front-end platform for demanding, long term oriented business and industry applications. It enables you to develop highly interactive web applications – without the need to learn JavaScript or any other browser technology. Server-side Java is all you need to know.
Java only development
No JavaScript, no client side coding, no assembling of HTML/CSS. - Server-side Java, that's it.
Development efficiency
Design your frontend by using a graphical editor. Directly bind your server-side application logic. Use Java for the "if-then-else"-parts and for dynamically created front-end parts.
Structured front-end
Automatically develop a highly structured UI - and no nightmare of scripting-code. Each part of your front-end is a re-usable unit to live in other parts.
Long term lifecycle support
We know that your application's lifecycle may easily last longer than 15 years! And we know how to save you investments.
Boring stuff "built in"
Multi language, multi date formats, timezone management, different styles for different users, personalized grids, ... - yes, included!
Excellent Performance
CaptainCasa Enterprise Client is designed to serve operationally used applications - and meets the user expectations towards speed and stability.
CaptainCasa RapidApp
RapidApp is a low-code framework on top of and fully integrated with CaptainCasa Enterprsie Client to take over the data aspects of your application without any coding. – The dialogs for viewing and editing your (relational) data are created without any coding.
No-code setup
Setting up entities with their relations, defining lists and detail dialogs, arranging them in a user workplace - all this is done by specification only. No coding required at all.
Rich feature set
Data editing includes: multi tenancy, full internationalization, tracing changes, checking authorizations of users, import and export of data.
High-quality frontend
Dialogs include: filtering of lists, saving personalized variants for all lists, high performance also on huge datasets, error feedback on field level, automated checking and proposing of references
Extendale by simple Java
Own rules for checking consistency? Rules for distributing changed information to other systesm? Add-on functions that you want to add to the user interface? - RapidApp provides the right entrance points following the MVC paradigm (Model View Controller) to take over - in Java!
Overview information is contained in the following video:
Check out the demo server...
Our ONLINE DEMO SERVER provides “tons of demos” – from presenting individual controls up to providing application scenarios.
...or install locally and get into it!
INSTALLATION is very simple and you get everything: the demo server, the development tools: you can jump-start into developing your first application dialogs!
Download & Install
3 minutes (Windows), 5 minutes (Linux, MacOS)
View demos locally
10 minutes
Start development
View tutorials 15 minutes - and go!
Enterprise Client in use
CaptainCasa is not an anonymous supplier of its framework but is your partner for user interface issues. Your feedback flows back into development. Join the CAPTAINCASA COMMUNITY and receive quick reactions on requests you might have during development.
