Modernize Legacy JavaScript.
Without Rewriting from Zero.
Kanetic-x is Kansoft's AI-driven framework for migrating AngularJS 1.x, jQuery, Backbone, and Knockout frontends to modern Angular 17+, React 18+, or Vue 3 — with TypeScript, modern build tooling, and progressive replacement that keeps users on the air throughout.
Component Inventory Complete
312 components · 89 directives · 47 services
React 18 Architecture Plan
State: Zustand · Router: TanStack · Build: Vite
AngularJS → React Conversion
78% auto-migrated · TypeScript strict mode
Visual Regression + E2E
Playwright + Percy snapshot tests queued
Legacy frontends weren't built for today's expectations — fast, accessible, secure, mobile-first. They become harder to ship to, harder to hire for, and harder to defend in security reviews every quarter.
AngularJS Is End-of-Life
AngularJS 1.x reached EOL in January 2022. No security updates. No bug fixes. No new browser support. Every day on AngularJS is a day of accumulating security debt.
jQuery Soup
10-year-old jQuery codebases are a tangle of DOM manipulation, event handlers, and AJAX callbacks with no separation of concerns. Adding a feature means breaking three.
No Type Safety
Plain JavaScript catches bugs in production. Modern Angular, React, and Vue all use TypeScript by default — strict types catch errors at compile time, before users ever see them.
Performance Floor
No virtual DOM. No code splitting. No tree shaking. No HTTP/2 push. Modern frameworks make pages 2–4× faster on the same hardware — and that's measured by Google's Core Web Vitals.
Mobile Reality
Desktop-era frontends weren't built for touch, mobile viewports, or progressive web apps. Modern frameworks make responsive design, offline capability, and PWA installation default.
The Hiring Problem
Frontend developers don't want AngularJS or jQuery on their CV. Job ads stay open for months. Junior hires arrive expecting React or Vue and quit when they find AngularJS.
Most agencies pitch a full UI rewrite — quote a year, deliver in two, ship a regression-riddled cutover. Kanetic-x is component-by-component, with the legacy app and the new one running side by side throughout.
Every step is informed by the realities of frontend code — DOM coupling, event handlers, async state, browser quirks. Generic refactoring tools miss the things that actually break in production.
Discover
Inventory every component, directive, service, and dependency. Map state flow and routing.
Design
Recommend target framework based on app shape, team skills, and performance targets.
Transform
Component-by-component conversion. Old and new render side-by-side via micro-frontend wrapping during the migration.
Validate
Visual regression on every commit. E2E tests with Playwright. Lighthouse + Core Web Vitals benchmarks.
Kanetic-x covers the full spectrum — from AngularJS upgrades to complete jQuery → React rewrites.
AngularJS 1.x → Angular 17+
The natural upgrade path. Components, services, and routing patterns map closely. AI handles the syntax transformation; standalone components, signals, and modern Angular patterns are applied.
AngularJS → React 18
For teams shifting frameworks entirely. AngularJS components map to React functional components with hooks. State migrates to Zustand, Redux Toolkit, or TanStack Query.
jQuery → React or Vue
Untangle imperative jQuery code into declarative components. The biggest gain — testability, predictability, and ability to onboard new engineers.
Backbone / Knockout → Vue 3
Backbone models and Knockout observables map naturally to Vue 3's reactivity system. Migration preserves data flow with minimal architectural change.
JavaScript → TypeScript
Plain JavaScript codebases get a strict TypeScript treatment. AI infers types from usage, and OpenAPI specs generate API client types automatically.
Webpack → Vite / Turbopack
Slow rebuilds, broken HMR, mysterious config. Modern build tools deliver sub-second feedback loops and 10× faster CI builds.
A real-world example: a customer admin panel built in AngularJS 1.x with Bootstrap 3 and jQuery datepickers, transformed into a modern React 18 + TypeScript + Tailwind interface.
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Legacy JS Era Limitations
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ActiveModern Frontend Stack
Indicative results from frontend migrations delivered through Kanetic-x.
Get Your Free
Frontend Codebase Assessment
Share your AngularJS, jQuery, Backbone, or Knockout app. Kanetic-x will produce a component inventory, target framework recommendation, performance baseline, and phased migration plan within 48 hours.