Java App Migration
Automated Code Migration for Legacy Java UI
automatically converted
a Java Swing app
and testers over rewrite
Maintain structure and clarity
in your transformed code
We built the generate clean, human-readable, and maintainable code. Your transformed application retains its original structure, naming conventions, comments, and whitespace — ensuring familiarity for your developers. The transpiler applies changes within the same line of code whenever possible, making it easy for your team to take full ownership of the migrated code.
See the Swing-to-Vaadin Flow migration example below.
Take the first step with the Modernization Toolkit Analyzer
Ready to bring your legacy Java applications to the web? The free Modernization Toolkit Analyzer audits all the ways your application code depends on the libraries you are moving away from, and estimates from this audit how much of the transformation can be automated based on known specifications. This report doesn’t take the place of an expert opinion but gives you a good starting point to have a discussion with your stakeholders.
Available as a Maven plugin in the Vaadin directory and a plugin in the Eclipse Marketplace, the Modernization Toolkit Analyzer helps you save time, reduce risk, and modernize with confidence. Try it today and take the guesswork out of your Java migration.
Give your application’s features
a new life on the latest
web standards
Get the job done with automation
Fully customizable transformations
Trusted by award-winning companies to create award-winning software
Java migration, not emulation
Code readability built-in
Fine-tuning: Reach your target automation with a fixed-price guarantee
Procountor made a UX-first accounting software with Vaadin
When Apple dropped support for their own JVM, we had to start supporting a Swing version of our app as well. The abstraction layer made it a natural choice for us to do the same with Vaadin, knowing that the API was so similar to both Swing and AWT. And that's what we did. Quite successfully I might add.
Talk to our team
Book a free consultation with our expert to learn more how the Migration Toolkit turns your old apps into modern web apps.