Welcome to Ext JS 5.1

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Welcome to Ext JS 5.1!

Ext JS 5.1 is a pure JavaScript application framework that works everywhere from IE8 to the latest Chrome. It enables you to create the best cross-platform applications using nothing but a browser, and has a phenomenal API.

View the Examples Discuss Ext JS on the forum

What’s New

Check out our new features and changes in the What's New Guide:

Spreadsheet Selection Model
3D Bar and Column Charts
Advanced Color Picker
Rating Widget
Core Unification

Guides

API Docs

Release Notes

Learn more on sencha.com

Upgrading

Check out our upgrade guides to see what has changed.

Ext JS 5 Upgrade Guide

Sencha also offers training courses and professional services for companies wishing to use Ext JS 5.