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Build data-intensive applications using JavaScript
Ext JS is a comprehensive JavaScript framework that lets you build cross-platform web and mobile applications for any modern device.
Everything you need to Create Modern Web Applications
Build data-intensive, complex apps effortlessly with our ready-to-use and high-performance UI components.
Develop
Design
Test
Adaptive
Accessibility
Data Package
Build web apps faster and easier with an enterprise-ready framework, components, and tools built to work together seamlessly.
Develop
Accelerate your design process with pre-integrated tools like Sencha Architect, Stencils, and Themer that help you create, prototype, and style your Ext JS applications.
Design
The most comprehensive unit and end-to-end testing solution for Ext JS that helps you deliver high-quality applications faster.
Test
Ext JS flexible layout manager helps you create responsive web applications that look great on any device.
Adaptive
Ext JS aligns with ADA Standards. ARIA package ensures accessibility for Section 508 Compliance.
Accessibility
The robust data package included in Ext JS decouples the UI components from the data layer.
Data Package
COMPONENT LIBRARY
Popular Components
See the most popular UI components from our library.
Charts
A library of different types of feature -rich, interactive charts for data visualization.
Build Better Applications with Sencha Tools
Build your apps end-to-end using Sencha state-of-the-art tools.
Accelerate your web application development with Ext JS
Ext JS is an enterprise-ready JavaScript framework with a comprehensive component library. Our 140+ pre-built components include grids, pivot grids, exporters, layouts, charts, and D3 adapters.
With the Sencha platform, your team can focus on building apps without having to worry about the framework. You can get your app to market faster and reduce maintenance costs because Ext JS and the UI library are integrated seamlessly.
Is open-source costing your dev team more than you think?
Learn how real companies get real results with Sencha Ext JS
Virtimo is a leading software manufacturer and IT consulting company headquartered in Berlin…
Scheuring AG, a Switzerland-based consulting practice service and solutions software developer…
Xero used Ext JS to develop an online, cloud-based accounting system for SMBs with support for…
“With the combination of an easy upgrade path and new features including MVVM architecture, touch events and charting enhancements, Ext JS is the best way for us to build desktop and tablet apps with a single codebase.”
“We use Ext JS, Sencha Touch and Sencha Cmd to build rich, native-like apps with a superior user experience that solve business problems in an uncompromising way.”
“The Ext JS component library is both extremely feature complete and extensible; the grid is unmatched by any other framework for large datasets. By leveraging Ext JS Charts, we enable our customers to build complex yet intuitive visualisations and dashboards of their data to gain valuable insights.”
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Learn everything you need to know about Ext JS
Explore our comprehensive documentation, including datasheets, examples videos, comparisons and much more. You can also follow our tutorial for building modern web apps with JavaScript and Sencha tooling.
The complete guide for building modern web apps.
View examples and datasheets on how to get started with Ext JS.
Deciding which frontend framework to use next? This comparison lets you compare the best web frameworks head-to-head and learn more about why to develop with Sencha.
Check out videos, the email client eBook, Skill Sprints, Joe’s Story, and much more to find answers to your questions about Ext JS.
Join our Sencha community and discord channel of over 200,000 developers worldwide.
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For over 20 years, Sencha has been delivering feature updates, support, and bug fixes. This allows you to prioritize building exceptional user experiences while receiving guaranteed development support through a subscription. Join the vibrant Sencha community on GitHub, Stack Overflow, and Discord.
Try Community Edition
Ext JS Community Edition is a free edition of Sencha’s JavaScript tooling, components, and framework for individuals and small organizations
Considering Ext JS for your business?
Book a demo with a Sencha Ext JS expert to see how our unmatched performance, Sencha tooling and dedicated support services can help your organization build modern web apps faster.