ExtJS advanced JavaScript framework

ExtJS - JavaScript Framework

What is ExtJS?

ExtJS is an advanced JavaScript framework for building complex web applications with rich user interfaces. It offers ready-made UI components, advanced grids, and data management for enterprise applications.

Founded
2007
Creator
Sencha
Type
JavaScript Framework
License
GPL/Commercial
100+
UI Components
Enterprise
Application class
20+
Years of development
UserGrid.js
// ExtJS Grid Panel Example
Ext.define('App.view.UserGrid', {
extend: 'Ext.grid.Panel',
alias: 'widget.usergrid',
store: {
type: 'users',
autoLoad: true
}
});
Output:
✓ Advanced Grid with sorting & filtering
✓ Data binding & MVC architecture
Enterprise Ready
Rich UI!

Benefits of ExtJS - why enterprise chooses it?

Main advantages of ExtJS - rich UI components, MVC/MVVM architecture, desktop UX, data binding, enterprise support

Challenges of ExtJS - honest assessment

ExtJS limitations - high licensing costs, large bundle size, learning curve, vendor lock-in, mobile limitations

What is ExtJS used for?

Main ExtJS applications in 2025 - enterprise admin panels, ERP systems, financial dashboards, data management

Enterprise admin panels

Comprehensive management panels for enterprise systems - CRM, ERP, user management, system configuration

tech.useCases.frameworks
ExtJS ClassicModern ToolkitSencha Architect
tech.useCases.realExamples

Cisco network management tools, Oracle Database administration, VMware vSphere client, Red Hat satellite console

Data management systems

Applications for browsing, editing and managing large datasets with advanced grids, filters and sorting

tech.useCases.frameworks
Grid PanelTree PanelData StoresVirtual Scrolling
tech.useCases.realExamples

Financial trading platforms (Bloomberg Terminal style), Database browsers, Business intelligence dashboards, Data warehousing tools

Financial and analytical dashboards

Real-time financial monitoring, investment dashboards, reporting systems with charts and real-time metrics

tech.useCases.frameworks
Charts PackageD3 AdapterDrawing PackageReal-time Data
tech.useCases.realExamples

Investment banking platforms, Risk management systems, Accounting software, Portfolio management tools

ERP systems and resource management

Complete enterprise resource planning systems - warehouse management, HR, finance, production, CRM

tech.useCases.frameworks
MVC ArchitectureMVVMRoutingLocalization
tech.useCases.realExamples

Manufacturing execution systems, Inventory management, Human resources platforms, Project management enterprise tools

FAQ: ExtJS – Frequently Asked Questions

Complete answers about ExtJS – from basics to licensing, mobile support and framework alternatives

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