Sencha Inc. | HTML5 Apps

Download Sencha Ext JS

Get Started

Please provide an email address below to download
a 45-day commercial evaluation of Sencha Ext JS.


Working in Open Source?

Ext JS 4.2.1 is also available under the GPLv3 for open source projects, which may require the release of your code. First, make sure your project meets our requirements. Download the GPL version: Download

Read more about licensing options

Already a Customer?

If you’re a current customer with a valid standard or premium support subscription, visit the Current Customer page to download the latest version of the framework.

Ready to Buy?

Ext JS 4 commercial license(s) are available for purchase right from our website. When you’re ready to purchase your Ext JS 4 commercial license, visit our store.

Buy Now

Support Subscribers

Version 4.2.2 and Version 3.4.2 are available to Sencha Support subscribers. Log in to download

Related Downloads

Ext JS 4.0.7
Ext JS 3 to 4 Migration Pack (Updated October 10, 2011)
Ext JS 3.4.0
Ext.Direct Pack
Sencha Cmd