Use the included files to view samples and our API documentation.

For advanced, hands-on support, please see our premium support subscriptions. Larger organizations can use our enterprise training and services.


Our community forums have over 100,000 registered users and are a great place to ask questions and interact with other Ext JS developers.


Ext JS is dual licensed. This means:

  • Free to use and test in your local development environment.
  • Free to use in your open source projects.
  • Purchase a developer license if you don’t plan on releasing your website or application’s code as open source.

To purchase a commercial license, please see our pricing page.

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