Sencha - Ext JS - Amazing Web Apps Built on Web Standards

# Welcome to Ext JS

Thank you for downloading Ext JS. With a community of over one million developers and our robust family of Sencha products, Ext JS is the leader in Javascript application development.

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## Learn

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.

- Getting Started Guide
- Examples
- Release Notes

## Engage

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

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- Subscribe to the official blog

## License

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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