A practical plan for migrating a JSP and jQuery frontend to React incrementally, with clear ownership, API contracts, testing, rollout, and microfrontend trade-offs.

Migrate JSP and jQuery to React Without a Rewrite

The target is safer change, not React everywhere

Map the legacy frontend before choosing a boundary

Choose a boundary that one runtime can own

Mount React inside a JSP-owned page

Make data, authentication, and events explicit

Stop jQuery and React from fighting over the DOM

Migrate one vertical slice at a time

Test the transition, not only the new components

Release with a fast way back

When the migration should become microfrontends

Know when the migration is finished

An incremental frontend migration checklist

Frequently asked questions

Migrating a JSP and jQuery Frontend to React Without a Big-Bang Rewrite

Incremental frontend migration, React adoption, microfrontend boundaries, testing, performance, and delivery strategies for evolving legacy interfaces safely.

Frontend modernisation

Frontend modernisation articles

Migrating a JSP and jQuery Frontend to React Without a Big-Bang Rewrite