--- title: Ext JS Reviews meta\_title: 'Ext JS Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 112 reviews by the users' company size, role or industry to find out how Ext JS works for a business like yours. aggregate\_rating: rating\_value: 4.1 review\_count: 112 scale: '5' date\_modified: '2026-08-09' parent\_category: name: Web Frameworks url: https://www.g2.com/categories/web-frameworks --- # Ext JS Reviews & Product Details Claimed ###### Profile Status This profile is currently managed by Ext JS but has limited features. Are you part of the Ext JS team? [Upgrade your plan](https://my.g2.com/ext-js/upgrade?utm_campaign=s3&utm_medium=claim-popup&utm_source=g2) to enhance your branding and engage with visitors to your profile! Sencha Ext JS is the most comprehensive JavaScript framework for building data-intensive, cross-platform web and mobile applications for any modern device. Ext JS includes 115+ pre-integrated and tested high-performance UI components. * * * Seller [Sencha](https://www.g2.com/sellers/sencha) Discussions [Ext JS Community](https://www.g2.com/products/ext-js/discuss) Languages Supported Czech, Danish, English, Finnish, Italian, Japanese, Korean, Dutch, Norwegian, Russian, Chinese (Simplified) Solution Type Best-of-Breed Overview by Raj Vuyyuru Show More ## Pricing Pricing provided by Ext JS. ### Community Edition Free ### Pro $1,295 perpetual license, per product [ View More Pricing Information ](https://www.g2.com/products/ext-js/pricing) ## Top-Rated Alternatives [ ![DevExpress](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "DevExpress") DevExpress 4.8/5(116) ](https://www.g2.com/products/devexpress/reviews) [ ![Essential Studio](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Essential Studio") Essential Studio 4.5/5(797) ](https://www.g2.com/products/essential-studio/reviews) [ ![Vue.js](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Vue.js") Vue.js 4.6/5(29) ](https://www.g2.com/products/vue-js/reviews) [ View All Alternatives ](https://www.g2.com/products/ext-js/competitors/alternatives) ## User Insights Average based on 112 real user reviews. Implementation Time 5 months Perceived Cost $$$$$ [Log in to unlock pricing and user insights](/login) ![Naveen K.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Naveen K.") NK Naveen K. Senior Technical Architect Mid-Market (51-1000 emp.) 3/19/2026 "Great UI Components, but Heavy Bundle Size and Cost Hold It Back" 2.5/5 What do you like best about Ext JS? The complete UI component system and MVC pattern and data handling. Review collected by and hosted on G2.com. What do you dislike about Ext JS? Heavy bundle size of this library and paid license. Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? It is solving the problems when handling heavy data in the UI. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Renato R.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Renato R.") RR Renato R. Senior Software Development Engineer Small-Business (50 or fewer emp.) 1/15/2020 "Powerful and fun, but hard and expensive" 2.5/5 What do you like best about Ext JS? For me the best thing in ExtJS is that it's powerful and flexible. The documentation is very good, lacks some advanced insights on the components internals but overall is very good. The fact that you can inspect it's code is also a plus since many times you can discover more over it's internals. The set of ready to use components is very good as well. Review collected by and hosted on G2.com. What do you dislike about Ext JS? First of all, it's a very expensive toolkit when compared to other tools available today (most of them open source). If you have a larger team it becomes cheaper to use open source tools and built your own components. In some very specific contexts this may not be true though. Another huge issue with it is the learning curve. It has been 3 years since I stopped using ExtJS professionally so this may have changed. Nonetheless it's the tool with the hardest learning curve that I ever worked with. Generally only good to excellent developers end up fully understanding it, the average and down developers have a very hard time on learning it since it has very specific characteristics and it requires deep knowledge on JavaScript. Personally it is not a big deal for me, but as a business man and a manager, it's hard to find developers to work with it. Plus the average cost of those developers is higher than if you use pure React for example. Review collected by and hosted on G2.com. Recommendations to others considering Ext JS: Evaluate if you really need it because it comes with a cost. Balance the benefits and costs wisely. Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? Enterprise apps mostly. It's the strongest front line for such an extensive toolkit and component library. Makes building RIA apps easier to develop and better organized. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Alessandro M.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Alessandro M.") AM Alessandro M. Team Leader Small-Business (50 or fewer emp.) 1/16/2020 "Functional but hard to customize" 2.5/5 What do you like best about Ext JS? The data layer of ExtJS is very powerful. In a short amount of time you can get your web application up and running with connection to a REST server, elaborate and display data in different kind of views. Review collected by and hosted on G2.com. What do you dislike about Ext JS? If you have to customize the views with custom CSS it's a pain because the dom produced by ExtJS it's over complicated. Review collected by and hosted on G2.com. Recommendations to others considering Ext JS: Evaluate first the level of customization required by your project Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? We solve the problem of handling and displaying big amount of data without have to rewrite a base data and communication layer. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Verified User in Retail](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Retail") AR Verified User in Retail Small-Business (50 or fewer emp.) 1/15/2020 Business partner of the seller or seller's competitor, not included in G2 scores. "Ext JS gets the job done." 2.5/5 What do you like best about Ext JS? Sometimes the documentation is lacking, and the only way to figure out how something works is to dig into the source code. If you need to build something that doesn't fit inside the framework, sometimes it can be a bit difficult to get to work with the framework itself. Also, the fact that it is a proprietary framework makes it difficult to find examples and community support sometimes. Examples given are almost always the most basic possible example, and have no real life application. The Architect product that they tried to push isn't really that useful for anything but basic prototyping. It seems like a good idea, but it's not really useful for making an actual application. It's also not the quickest framework to learn, since there is so much to it. I've run into some issues with memory leaks where things don't necessarily get collected by the garbage collector. That could be my fault as much as theirs, though. Review collected by and hosted on G2.com. What do you dislike about Ext JS? Sometimes the documentation is lacking, and the only way to figure out how something works is to dig into the source code. If you need to build something that doesn't fit inside the framework, sometimes it can be a bit difficult to get to work with the framework itself. Also, the fact that it is a proprietary framework makes it difficult to find examples and community support sometimes. Examples given are almost always the most basic possible example, and have no real life application. The Architect product that they tried to push isn't really that useful for anything but basic prototyping. It seems like a good idea, but it's not really useful for making an actual application. It's also not the quickest framework to learn, since there is so much to it. I've run into some issues with memory leaks where things don't necessarily get collected by the garbage collector. That could be my fault as much as theirs, though. Review collected by and hosted on G2.com. Recommendations to others considering Ext JS: It's going to take some time ramping up as a developer, but once you understand the framework, and how they do things, it works very well. Just hope that you are familiar with digging through source code. Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? Creating a single page application used by many people. We use a lot of grid and form components. Often, we have the page broken into different tabs based on functionality within the program. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Verified User in Transportation/Trucking/Railroad](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Transportation/Trucking/Railroad") UT Verified User in Transportation/Trucking/Railroad Small-Business (50 or fewer emp.) 1/15/2020 "Ext JS Senior, 6 years experience started with version 4.2" 3/5 What do you like best about Ext JS? The stable components and power of tables. Build apps in a high performance MVVC concept very fast once you understand the framework. Build apps (PWA) for Android and iOS on one code base. Review collected by and hosted on G2.com. What do you dislike about Ext JS? Poor of customizing webcomponents. Long time to understand framework. No community supporting framework out there. Review collected by and hosted on G2.com. Recommendations to others considering Ext JS: Depends on your needs. Condsider to have a look on other frameworks because you'll have a hard time to find developers out there knowing Ext JS. Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? Processing real time industrial data and visualization. Strong in store and process data fast. Limits in Data visualization often used third party libs inside of ext. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Fuller M.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Fuller M.") FM Fuller M. IT Coordinator for Special Projects Enterprise (\> 1000 emp.) 1/23/2020 "Rich Framework but Hard to Learn" 2.5/5 What do you like best about Ext JS? The many rich and robust interface options we can select Review collected by and hosted on G2.com. What do you dislike about Ext JS? Hard to learn, expensive, hard 2 upgrade Review collected by and hosted on G2.com. Recommendations to others considering Ext JS: Learn the tool and stay dedicated. Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? The application we built using Ext JS is very solid - it's stable, which is really, really important because the original developer left here about 4 years ago. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Verified User in Computer Software](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer Software") UC Verified User in Computer Software Small-Business (50 or fewer emp.) 1/15/2020 "Good for prototyping" 3/5 What do you like best about Ext JS? Prototyping the UI. Can be very quick using the visual tools. Review collected by and hosted on G2.com. What do you dislike about Ext JS? It became difficult to manage as the project got larger. Not wanting to use the UI tools and code with my own text editor was cumbersome. Review collected by and hosted on G2.com. Recommendations to others considering Ext JS: Not sure Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? Helped in rapidly prototyping some proof of concept apps to determine if they were viable in the market. This was especially true for data visualizations and charts. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Verified User in Telecommunications](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Telecommunications") UT Verified User in Telecommunications Small-Business (50 or fewer emp.) 1/23/2020 "So - So" 2.5/5 What do you like best about Ext JS? Framework is all inclusive - widgets, models, and extensibility. Review collected by and hosted on G2.com. What do you dislike about Ext JS? Syntax is very dated. Improvements are small or made to be bigger than they really are. Roadmaps aren't reached regularly. Review collected by and hosted on G2.com. Recommendations to others considering Ext JS: None Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? I am falling behind the times by using ExtJs syntax and functionality. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Verified User in Transportation/Trucking/Railroad](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Transportation/Trucking/Railroad") CT Verified User in Transportation/Trucking/Railroad Mid-Market (51-1000 emp.) 1/16/2020 "it is good for quick start project, difficult to master/customise" 3/5 What do you like best about Ext JS? great library of pre build components to chose from Review collected by and hosted on G2.com. What do you dislike about Ext JS? difficult to customise the compons per theam and usewithi in existing product Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? browser compatibility and pre built components are great Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Verified User in Computer Software](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer Software") AC Verified User in Computer Software Small-Business (50 or fewer emp.) 10/9/2019 Business partner of the seller or seller's competitor, not included in G2 scores. "Loved EXTJS but..." 2.5/5 What do you like best about Ext JS? - Built Web Apps with nice UX very fast - Many tools Review collected by and hosted on G2.com. What do you dislike about Ext JS? - Following EXTJS since Version 3.\* I can say they developed in a bad way when it comes to their license model. It is fine to make money but they really ruined the EXTJS community - Too much focus on the very big customers using EXTJS - Not that easy to get started (depends on you) Review collected by and hosted on G2.com. What problems is Ext JS solving and how is that benefiting you? - Creating user friendly backends Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller ## Questions about Ext JS? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about Ext JS ](https://www.g2.com/products/ext-js/discussions/new) GU Guest User What is Ext JS used for? 0 Upvotes 0 [ Join the conversation ](https://www.g2.com/discussions/what-is-ext-js-used-for) GU Guest User What is your experience with Ext JS for building web applications, and what improvements would you suggest? 0 Upvotes 0 [ Join the conversation ](https://www.g2.com/discussions/what-is-your-experience-with-ext-js-for-building-web-applications-and-what-improvements-would-you-suggest) [ View all Discussions ](https://www.g2.com/products/ext-js/discuss) ## Pricing Options Pricing provided by Ext JS. ### Community Edition Free ### Pro $1,295 perpetual license, per product ### Enterprise $1,895 perpetual license, per product [ View More Pricing Information ](https://www.g2.com/products/ext-js/pricing) Ext JS Comparisons ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_a57b152e38712ef08473c51e9cce49c8/devexpress.png "Product Avatar Image") DevExpress 4.8/5(116) [ Compare Now ](https://www.g2.com/compare/devexpress-vs-ext-js) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_a358b53a0a9cde71b52540069164a069/vue-js.png "Product Avatar Image") Vue.js 4.6/5(29) [ Compare Now ](https://www.g2.com/compare/ext-js-vs-vue-js) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_21a537a2f60ea582bd213cab0722cb1a/express-js.png "Product Avatar Image") Express.js 4.5/5(133) [ Compare Now ](https://www.g2.com/compare/express-js-vs-ext-js) ##### ##### Ext JS Features JavaScript Frameworks Libraries Community Widgets [ View More Features ](https://www.g2.com/products/ext-js/features) ##### Categories on G2 [JavaScript Web Frameworks](https://www.g2.com/categories/javascript-web-frameworks) ##### Explore More [Which PLM platform works best for a company with distributed design and production teams that need real-time visibility into product data across locations?](https://www.g2.com/discussions/which-plm-platform-works-best-for-a-company-with-distributed-design-and-production-teams-that-need-real-time-visibility-into-product-data-across-locations%20)[Top spend analysis tools for procurement optimization](https://www.g2.com/discussions/what-are-the-top-spend-analysis-tools-for-procurement-optimization)[Top tools for managing and prioritizing software bugs](https://www.g2.com/discussions/top-tools-for-managing-and-prioritizing-software-bugs) [Best inbound call tracking software for small businesses](https://www.g2.com/discussions/best-inbound-call-tracking-software-for-small-businesses-any-recommendations)[What quote to cash implementation methodologies and best practices do the leading consulting firms bring to complex projects?](https://www.g2.com/discussions/what-quote-to-cash-implementation-methodologies-and-best-practices-do-the-leading-consulting-firms-bring-to-complex-projects)[Is a dedicated visual configuration platform worth it for a mid-size manufacturer, or do most buyers convert just as well from a CPQ?](https://www.g2.com/discussions/is-a-dedicated-visual-configuration-platform-worth-it-for-a-mid-size-manufacturer-or-do-most-buyers-convert-just-as-well-from-a-cpq) [Show MoreShow Less](javascript:void(0);)