> Vaadin is an open-source Java framework for web applications: what it does on your site, the session cookie it relies on and what it means for GDPR.
>
> Canonical: https://www.flowconsent.com/en/services/framework/vaadin

Frameworks

# Vaadin

Unclassified · [Official website](https://vaadin.com)

Vaadin is an open-source Java framework for building web applications, developed by the Finnish company Vaadin Ltd. Developers write the user interface in Java or with its web components, and the framework handles communication between browser and server. Like most server-side frameworks, it typically uses a session cookie to keep the application state.

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At a glance

- Category

  [Frameworks](https://www.flowconsent.com/en/services/framework)

- Consent

  Unclassified

- Prior consent

  Required

- Documented cookies

  0

Compliance

## Vaadin and the GDPR

Vaadin is classified as “Unclassified”. On a site that targets European visitors, it must only load after the visitor consents, and it must be listed in your cookie policy.

Cookies and trackers

## What Vaadin sets and contacts

The cookies of Vaadin are not documented in the catalog yet. To see what is actually set on your site, run a free scan.

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