Packaging and deploying Spring Boot applications as WAR files

Vaadin Dev Day Spring 2021 recordings available

Vaadin Dev Day Spring 2021 was a success! We had three speakers with talks around Vaadin Flow, including high-performance database access, advanced JavaScript integrations, and new features coming to Vaadin Flow in the near future. If you missed the event, we've got you covered! You can watch the ...

Announcing the Vaadin Community Award

July 2021: Article updated to fix some of the rules and details. I'm happy to announce the Vaadin Community Award (VCA) program, which recognizes the valuable efforts of top contributors in the Vaadin Community.  
Vaadin Dev Day Spring 2021 with Matti Tahvonen, Simon Martinelli, and Leif Åstrand

Get ready for Vaadin Dev Day - Spring 2021

We have an amazing lineup for the next edition of the Vaadin Dev Day, coming up this spring, with two well-known Vaadiners and a special guest. The event focus is on Vaadin Flow topics, including DataProvider usage, JavaScript integration, and a roadmap presentation. But that's not all! We have a ...

Top 5 most common Vaadin performance pitfalls and how to avoid them

A couple of weeks ago I was coding a demo app when it dawned on me that if I was to use my code in a real-world application, it would consume unacceptable amounts of memory once it reached 100 or more concurrent users. Vaadin Flow makes it easy to start coding web applications, even if you have no ...

Vaadin tips video series

Since last October, we have released weekly technical videos on topics about Vaadin Flow and Vaadin Fusion. If you are a visual learner, this series is for you!
Test results

Introduction to load testing with Apache JMeter

Load testing allows you to simulate multiple users interacting with your application. This allows you to experiment with a real-world load on your application and understand its behavior under different levels of stress. In this article, I'll show you, step by step, how to run load tests on a ...

Vaadin Dev Day October 2020 videos now available

The second free online edition of Vaadin Dev Day took place in October and was a success! We had participants from all over the World. Just for fun, see if your location is on the participant map: The event theme was Vaadin Fusion—a web framework to build UIs using TypeScript and Java backends. The ...
Vaadin Dev Day

Vaadin Dev Day online is here again

And it's free! At Vaadin Dev Day events, you get to see developers from the Vaadin team presenting technical topics on web development. Traditionally, this event is held in person in different cities throughout the year. At the beginning of 2020, this changed and the event was moved online and ...

New Vaadin 14 Reference Card now available!

I'm glad to announce the availability of the renewed version of the Vaadin Reference Card (previously known as the Vaadin Refcard). This reference card is tailored to developers with previous Vaadin experience. It is a quick reference with condensed information on key concepts and everyday tasks ...