Sencha Ext JS
Still Ext JS, in the age of AI
Even when AI drives the cost of writing code close to zero, the cost of verifying and standing behind the dependencies that code drags in does not go away. Ext JS is one framework by a single vendor.

AI writes the code. Someone still has to own it.
When AI drives the cost of writing code close to zero, the cost that remains is verifying and standing behind everything that code pulled in with it.
One party is accountable
Assemble a grid, charts, forms and state management from separate open-source projects and each ships breaking changes on its own schedule — nobody owns the combination. Sencha validates the entire component set and moves it forward in a single upgrade.
A far smaller supply-chain surface
A hundred npm packages typically pull in more than a thousand transitive dependencies written by thousands of different authors. As the March 2026 axios compromise showed, code nobody on your team ever chose becomes code you ship to production.
Ready for audit and SBOM
Auditing a thousand-dependency SBOM on every release and auditing a single commercial component are costs an order of magnitude apart. SBOMs are already hardening into a procurement requirement across government, defence and financial services.
AI adds dependencies — it never removes them
An AI assistant pulls in another library the moment it needs one, and it invents package names that attackers then register. Inside a closed component set there is no new dependency left for it to invent.
No decision points for AI to get wrong
AI fails not because it does not know the framework, but because it does not know your team's rules. In Ext JS, Ext.define, xtypes, the config system and MVVM leave essentially one way to do things — there is no house style to guess at.
Generated code can be checked mechanically
Ext JS ships machine-readable metadata for every class and config. An xtype that does not exist or a config key that was never valid can be caught automatically — closing the loop so the model corrects its own output instead of your developers doing it in review.
The same license, at a good price.
Buying through an authorized reseller gets you a good price and fits how enterprises actually purchase software.
Authorized Worldwide Master Reseller
We are contracted directly with Sencha, Inc. with worldwide territory and Master Reseller status. Your license keys are issued by Sencha under the standard End-User License Agreement — identical to a direct purchase. No grey-market keys, no resold seats.
Discounted reseller pricing
New Ext JS licenses purchased through us are supplied at a discounted price. Same product, same support entitlement. Request a quote and we will confirm the exact figure for your team size and licence term.
Built for corporate procurement
Formal quotation, commercial invoice, purchase-order handling and bank transfer (T/T) — no corporate credit card required. We work to your finance and vendor-registration process.
Proven on large enterprise deployments
We have supplied and supported Ext JS on projects at Samsung Electronics, Samsung SDS, SK Telecom, SK Planet, LG CNS and KT — ERP, MES and smart-factory, finance, logistics and public-sector systems. Our engineers have seen how Ext JS behaves at that scale, and answer accordingly.
Delivered for global largest enterprises
Ext JS licences supplied and supported by MIRAE WEB run in production at conglomerates, banks, telecoms and public agencies — ERP, manufacturing execution, logistics and mission-critical internal systems.


















Sencha Ext JS — the enterprise JavaScript framework
140+ pre-built, professionally tested UI components. One framework instead of a dozen libraries you have to integrate and maintain yourself.
The fastest enterprise data grid available
Handle millions of rows with infinite scrolling, grouping, pivoting and Excel export — built in, with no plugins to license separately.
- Infinite scroll and buffered rendering for large datasets
- Pivot, group, filter, and export to Excel / PDF
- Pure HTML5 — no browser plugins required

Charts, forms and layouts included
50+ chart types and a complete component set ship with the framework. You are not assembling a stack from five vendors and hoping the versions stay compatible.

One codebase, every browser and device
Responsive layouts adapt from desktop to tablet and mobile, and every modern browser renders identically — a requirement for enterprise and public-sector deployments.
- Desktop, tablet and mobile from a single application
- Consistent rendering across all modern browsers
- Accessibility and enterprise theming support

Compare packages
Choose the licence that fits your project. Tell us your team size and we will confirm the exact configuration and your discounted price in a written quotation.
Ext JS PRO Term
- Ext JS
- Cmd
- Ext JS Stencils
- 1 Year M&S
- IDE Plugins
- Architect
- Sencha Themer
Ext JS ENTERPRISE Term
- Ext JS
- Cmd
- Ext JS Stencils
- 1 Year M&S
- IDE Plugins
- Architect
- Sencha Themer
- Inspector
- D3 Adapter
- Pivot Grid
- Calendar
- Exporter
From enquiry to licence key
No account to create, no credit card required to get a price.
Request a quote
Tell us the edition and how many developers need a licence. That is all we need to price it.
Receive a formal quotation
A written quotation in USD with our reseller discount already applied, ready for your procurement and finance teams.
Pay and receive your licence
Settle by bank transfer against our commercial invoice. Once payment is confirmed, your licence is delivered to you by email within 1 business day.
What buyers ask us first
Is the licence identical to buying directly from Sencha?
Yes. Licence keys are issued by Sencha, Inc. under Sencha's standard End-User License Agreement. The product, the entitlement and the support are the same. What differs is the price — ours is below list — and the purchasing process.
How much is the discount?
It depends on the edition, the number of developers and the licence term, so we confirm it in writing rather than publishing a single figure. Send us your team size and you will have the number the same or next business day — with no obligation.
How do we pay?
Bank transfer (T/T) against our commercial invoice, in USD. This is the method most enterprise and public-sector buyers require for cross-border software purchases, and it produces the documentation your finance and tax teams need. Purchase orders are welcome.
Which countries do you sell to?
MIRAE WEB holds worldwide Master Reseller territory for Sencha. We invoice internationally in USD and are experienced with vendor registration and procurement documentation across Asia-Pacific.
Can you help beyond the purchase?
Yes. Our engineers have over ten years of hands-on Ext JS experience and provide paid training and implementation consulting — version upgrades, migration planning and architecture review. Tell us what you need when you request a quote.
Who exactly is MIRAE WEB?
A software distributor incorporated in Seoul, Korea, working with Sencha since 2014. We hold worldwide Master Reseller status and have distributed Sencha products without interruption for since 2012. Our engineers work with Ext JS daily, so the person answering your licensing question also understands the framework.
Ready for a price?
Send us your edition and developer count. You will have a formal quotation with our reseller discount already applied.
Request a quote
Tell us the edition and how many developers need a licence. We reply with a formal quotation in USD at our discounted reseller price. No obligation.
