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Swing to Web today

Modernize at your own pace

Run your existing Java Swing app in the browser without a risky big-bang rewrite. Modernize view by view, reusing your Java code and team. No JavaScript required.
Discuss your Swing app
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Why move away from Swing

Your Swing applications still do the job. The pressure to
change is coming from everything around them.

Slow delivery

Desktop-first architecture slows feature work. Packaging, installers, and per-machine updates add overhead to every release.

End-user expectations

Users expect web access and mobile support. They don't want to install desktop clients or wait for IT to update their machines.

Hiring and retention risk

Finding developers with Swing experience is hard. Your best people want to work with modern web technologies.

Operational overhead

Desktop installs, per-machine updates, Java runtime dependencies, and limited scalability all add cost and complexity you shouldn't have to manage.

Security and compliance pressure

Desktop clients are harder to govern and patch. Centralized browser access makes updates and policy enforcement easier, with less endpoint risk.

Strategic risk

The longer you stay on Swing, the more expensive any future change becomes—whether that's hiring, migrating, or maintaining what you have.

From Swing to web, without a rewrite

Three-step path from desktop to modern web.
Run your Swing app in browser today, modernize at your own pace.

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1. Your Swing app in browser, today

Put the current Swing app behind a URL so users can access it like any web app.

Deploy once, access from anywhere. No more packaging desktop clients, handling per-machine updates, or managing Java installs on user devices.

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2. Modernize at your pace

Gradually replace Swing screens with new web views built entirely in Java.

Your current developers can build modern web UIs without learning JavaScript, React, or npm, and without hiring a separate frontend team. Keep everything in Java.

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3. Complete modernization

Over time, more of the UI moves to the web until Swing is no longer needed.

No big-bang cutover. No parallel system. No frozen development.

What you’ll get

Swing Modernization Toolkit is subscription-based. You pay only while your Swing application runs in the browser. Once you've fully migrated to a modern web UI, you can end the subscription.
No long-term commitment.
Key capabilities
  • Run your existing Java Swing application in the browser
  • Add new web-based views built in Java with Vaadin, alongside existing Swing UI
  • Automatically migrate Swing views and workflows to a modern web stack
  • Use drop-in implementations for common Swing/AWT behaviors so the app works well on the web and supports embedded Vaadin views
Included in your subscription
  • Support credits (40) for expert help and guidance
  • Hotfixes when you need them
  • Expert chat for quick questions
  • Optional add-on: Vaadin Foundations consulting

Let’s map your path from
Swing to web

Tell us a bit about your Swing app. We’ll follow up to understand your setup and what “success” looks like, then recommend the best next step.

  1. Submit the form
  2. We schedule a short call to review your app and requirements
  3. You’ll get clear recommendations on next steps


No commitment. You decide whether to proceed.
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