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Best Free Alternatives to Sencha Ext JS 7.9+
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Category: Enterprise JavaScript FrameworkVerified for 2025
Top Recommended Replacements
React + MUI X / AG Grid
FREETop Professional Alternative
Why we like it
Industry-standard flexibility; massive developer pool; MUI X and AG Grid provide the high-performance enterprise components (Grids/Charts) that React lacks natively.
Keep in mind
Requires assembling a 'stack' of multiple libraries; frequent breaking changes in the ecosystem; management of state/routing is not built-in.
Vue.js + PrimeVue / Element Plus
FREEBest for Developer Experience
Why we like it
Arguably the easiest learning curve; PrimeVue provides a vast, high-quality component library that rivals Ext JS; significantly faster initial load times than Ext JS.
Keep in mind
Smaller corporate backing than React; enterprise support is community-driven unless using a paid component vendor like PrimeTek.
Angular
FREEBest 'All-in-One' FOSS Alternative
Why we like it
The 'Sencha of Open Source'—it's a complete, opinionated framework with built-in routing, state management, and testing; backed by Google; very stable for long-term projects.
Keep in mind
Strict TypeScript requirement (pro for some, con for others); high learning curve; component library is not as 'out-of-the-box' feature-rich as Ext JS.
DHTMLX
Best Specialized Data Rival
Why we like it
Specifically targets the GANTT, Kanban, and Scheduler niches; much lighter footprint than Ext JS; highly customizable CSS.
Keep in mind
Less comprehensive as a 'total framework'—better for adding complex widgets to existing sites than building a full SPA from scratch.
Ext JS Community Edition
FREEBest for Small Teams (<$10k revenue)
Why we like it
Full access to the core framework and 100+ components for $0; perfect for students, nonprofits, and early-stage startups.
Keep in mind
Restrictive revenue cap ($10,000 USD/year); limited to teams of 5 or fewer developers; lacks the most advanced 'Enterprise' components like the Pivot Grid.
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