# Vaadin – thinking of U and I

# Licensing

Vaadin Framework is intended to be freely used and extended by anyone without any fees. In order to guarantee these freedoms, Vaadin Framework is licensed under the Apache License, Version 2.0.

Vaadin Framework is built using Google Web Toolkit, which is also licensed under the Apache License, v 2.0. Development using Vaadin Framework or use of applications created with Vaadin Framework do not require Google Web Toolkit. Vaadin Framework includes a precompiled "widget set", which uses only Apache 2 licensed code from Google Web Toolkit.

Extending Vaadin Framework requires use of Google Web Toolkit. For details on Google Web Toolkit licensing, see http://code.google.com/webtoolkit/terms.html.

If you have any questions on licensing terms, please contact us through the vaadin.com web-site.

# Copyright and trademarks

"Vaadin" and "}>" are registered trademarks of Vaadin Ltd. You may not market your products or services using the Vaadin -brand name, use Vaadin logos or trademarks without written permission from Vaadin Ltd.

Copyright to Vaadin Framework is owned by Vaadin Ltd.

# Apache License

## Terms and Conditions for Use, Reproduction and Distribution

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