Thank you for downloading Ext JS 4.2.0.
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To get started, unzip the archive to your local web server and navigate to
http://localhost/your-ext-install/ to view the documentation and complete working examples. Any samples that use Ajax will need to be on an web server in order to work correctly.
Our Developer Center is full of structured tutorials and screencasts, and you can browse some of the recommended books if you need extra homework. First timers, be sure to read the handy Getting Started Guide.
Join the Community
Register for free on the Sencha Forum and you join our growing community of over 480,000. The forum is a great place to ask questions, help others, and showcase your apps.
Download Sencha Cmd, the command-line tool to scaffold and build your next Ext JS app for Mac, Windows and Linux.
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If you’re interested in using our content delivery network in your production environment, you can link to ext-all.js