Ext JS Development
The Ext JS framework is used to create the front-end of web applications. It is often used for enterprise-grade systems and provides a comprehensive toolset for developing complex, feature-rich interfaces with cross-browser compatibility.
About Ext JS Development
This framework is most suited for building enterprise-scale solutions, especially internal corporate systems. With the concept of data stores, Ext JS framework provides advanced data management features, and enables data binding, sorting, filtering, and dynamic loading. This makes it appropriate for developing applications that deal with vast amounts of data.
Ext JS development helps deliver a consistent experience across different web browsers. Upon choosing it, you won’t need to make any browser-specific adjustments. This makes web applications more reliable and simplifies front-end development. It involves pre-built UI components, such as grids, charts, forms, trees, panels, tabs, etc. These are highly customizable and can be easily integrated into web apps.
You can partner with an Ext JS development company to build large-scale applications where the requirements include data-intensive views, dashboards, and complex user interactions. For instance, you can use it for building ERP, CRM, or CMS applications. We often work with legacy products based on this technology, and are well-capable of supporting legacy Ext JS solutions.
Technology Benefits
Cross-platform support
Runs seamlessly on various platforms
Responsive design
Adjusting layout for various screens
Comprehensive documentation
Detailed guides and resources for developers
SAAS and Compass support
Enhanced CSS capabilities with SAAS and Compass
Data binding
Simplified synchronization between data and UI
Extensive package of components
Rich set of pre-built UI components
Data package
Powerful tools for managing and visualizing data
Extensibility
Adaptable and extensible according to project needs
Theming system
Customizable themes for consistent UI branding
Integrated toolkits
Tools to streamline and accelerate development
MVC architecture
Clean structure for maintainable, scalable code
Community support
Active community for troubleshooting and collaboration
Customizable templates
Tailored templates to suit project requirements
Ext.js Development Services We Provide
This framework is best suited for enterprise applications and other large projects. Here are the services we offer.
Enterprise app development
We build large-scale client side apps using Ext.js
Software audit
We assess the health of your software and advise on improvement
Legacy migration
We migrate legacy systems to newer, more relevant technologies
Maintenance and support
We provide ongoing support for existing solutions and correct errors
Consulting services
We offer advice on starting your project
Project improvement
We have improved Ext.js projects, including those using older versions
Hire Ext.js Developers
Develop new projects or improve existing Ext.js systems by leveraging the tech and domain expertise of SECL Group’s engineers
Our Clients
We develop large projects for clients across 27 countries, a significant number of which are featured on the Fortune 500 list.


Ext.js – our core expertise
We are Ext.js Company
Why Choose SECL Group for Ext.js Development?
SECL Group has a wealth of experience in building Ext.js solutions. Here’s why you should consider partnering with us for your project.
Vast portfolio
We have completed hundreds of projects for our clients
Enterprise projects
We have vast experience working on enterprise-grade projects
Version update or support
We can support older framework versions or update to new ones
Legacy code
We often deal with legacy code in our projects, and know how to address key issues
Internal systems
We’ve built various corporate systems using Ext.js
82% senior engineers
We have an 82% seniority level in our team
Many locations
We have 5 offices across different locations around the globe
Team of 70+ engineers
We have a full-time team of 70+ software developers
Our Software Development Standards
In our work we follow such international approaches and standards:
| Management: | PMP |
| Design: | ISO 9241-210 |
| Programming: | Coding conventions, MDN Web Docs, Naming convention |
| Python: | PEP 8 |
| JS/TS: | ECMA, JavaScript Standard Style, Google TypeScript Style Guide, ESLint |
| PHP: | PSR |
| С#: | ReSharper |
| HTML/CSS: | W3C |
| Security: | GDPR |
| Testing: | ISTQB |
When do you need Ext JS Development?
You can start working with an Ext JS development company like SECL Group if you have an enterprise solution and require a powerful framework for front-end development. Ext JS is best suited in these cases:
Multi-component interfaces
You plan to create complex interfaces with many interactive components
Enterprise-grade system
You want to build a large-scale solution, such as CRM, ERP, or CMS
Cross-browser
You need a technology that suits various browsers
Data management
You want a framework with powerful data-handling capabilities
Desktop-like experiences
You want to provide desktop-like experiences for your users
Customization
You need easy theming and customization for your front-end
Our Awards
Awwwards – Website Design Awards
Behance Interaction Award
Our Technological Toolbox
We specialize in specific technologies, with the technology stack chosen based on the project’s purpose and requirements
Programming languages:

Web / Frameworks:

Databases / Data storage:
DevOps containers:
DevOps automation:
DevOps CI/CD:
DevOps monitoring:
Testing:
Clouds:
Industries
Core domains we specialize in
Additional domains we have experience in
FINANCE
REAL ESTATE
TRAVEL & HOSPITALITY
AGRICULTURE
MEDIA & PUBLISHING
And experience in more than 20+ other industries!
You Will Get
A front-end that works seamlessly in different browsers
Ability to add numerous interactive elements to your interface
A framework that suits the development of complex systems
A rich set of pre-built UI components
Ability to deal with large sets of data
An interactive and engaging user interface
FAQ
These are our answers to some common questions regarding Ext.js software development. If your query isn’t covered here, please feel free to reach out to us.
What is Ext.js good for?
Ext JS is designed for building feature-rich, enterprise-grade web apps. It’s particularly well-suited for creating data-intensive applications with complex user interfaces. This makes it ideal for developing functionality dashboards, data grids, and reporting tools. Ext JS also has a comprehensive set of components and tools for streamlined development.
What are the biggest advantages of Ext JS?
Ext JS development with SECL Group offers several key benefits, including a comprehensive set of pre-built UI components, robust data management capabilities, and cross-browser compatibility. It also provides extensive documentation and strong community support.
How do teams approach auditing an Ext JS application?
Experienced development teams like SECL Group review how components are structured and how data flows through the system during software audit. It’s also important to define whether performance problems come from architecture rather than the framework itself.
What does long-term maintenance of Ext JS applications look like?
Ext JS app maintenance focuses on keeping the system stable while gradually improving performance and usability. Since these applications tend to be long-lived, small, consistent updates are more effective than large changes.
How flexible is Ext JS when business requirements change over time?
Ext JS apps can adapt to change, but flexibility depends on how well the system was structured initially. A clear architecture built by SECL Group’s consultants makes it easier to extend functionality without disrupting existing features.
How much does Ext.js software development cost?
There is no universal formula for calculating the cost development. The cost of Ext JS development with SECL Group varies depending on factors like project complexity, the number of integrations involved, developer expertise, and the timeline. If you want to receive an accurate estimate, contact us and we will discuss your project.
What kinds of enterprise systems are typically built with Ext JS?
Ext JS is commonly used for enterprise systems like dashboards and data-heavy platforms where users need to manage large volumes of information. It’s particularly suited for apps where multiple modules need to work together within a unified interface.
What challenges may occur when migrating legacy systems to Ext JS?
Legacy systems may have inconsistent logic or outdated patterns that need to be reworked. Companies like SECL Group treat migration to Ext JS as an opportunity to improve system’s structure instead of dealing with existing issues only.
What role does consulting play in Ext JS development projects?
Consulting during Ext JS software development helps define how the system should be structured before development begins. This is important for enterprise applications, where early decisions significantly impact how manageable the system is later.
How do vendors improve an existing Ext JS project?
Ext JS app improvement projects usually start with identifying what’s causing friction, whether it’s slow performance, difficult navigation, or something else. From there, teams make targeted changes to fix the issues.



