Ecosystem

Redux is a tiny library, but its contracts and APIs are carefully chosen to spawn an ecosystem of tools and extensions, and the community has created a wide variety of helpful addons, libraries, and tools. You don't need to use any of these addons to use Redux, but they can help make it easier to implement features and solve problems in your application.

For inspiration or examples, the JS ecosystem is quite rich and can be explored here.

First-party modules

The core redux-kotlin library is intentionally minimal. Optional companion modules build on its contracts; add only the ones you need — or start with a bundle, the recommended install. Published modules share the core's group id org.reduxkotlin and version; rows marked as repo tools are developer tools that ship in the repository and are not published to Maven.

Bundles — the recommended starting point

Module	Purpose
redux-kotlin-bundle-compose	The bundle plus the Compose bindings and redux-kotlin-compose-saveable — the single dependency for Compose Multiplatform apps.
redux-kotlin-bundle	One-dependency assembly of the concurrent ModelState stack (createConcurrentModelStore, registry helpers) — concurrent + multimodel + granular + routing in one artifact, no Compose runtime.
redux-kotlin-bom	Maven BOM aligning the versions of every org.reduxkotlin module, for à-la-carte setups.

Core & stores

Module	Purpose
redux-kotlin	The core store, reducer, and middleware contracts.
redux-kotlin-concurrent	createConcurrentStore — lock-free reads with caller-serialized writes; NotificationContext controls where subscriber callbacks run (incl. coalescingNotificationContext for lag-free main-thread notify).
redux-kotlin-threadsafe	Deprecated in favor of redux-kotlin-concurrent. createThreadSafeStore — a store wrapper that serialises every store function on one lock.
redux-kotlin-thunk	Thunk middleware for async actions — dispatch functions that can themselves dispatch once async work completes (createThunkMiddleware()).

State shape

Module	Purpose
redux-kotlin-granular	Granular Subscriptions — subscribe to a single field or selector with an (old, new) callback that fires only when that value changes.
redux-kotlin-registry	Store Registry — manage many stores keyed by a unique identifier, with thread-safe getOrCreate and manual lifecycle.
redux-kotlin-multimodel	ModelState — a type-safe bag of independent feature models keyed by class, plus combineModelReducers to drive them from one store.
redux-kotlin-multimodel-granular	Granular subscriptions for ModelState — subscribeTo(Model::field) / subscribeToModel(...).

Routing

Module	Purpose
redux-kotlin-routing	Routed (model, action) dispatch over ModelState — declare each slot with model(initial) { on<Action> { … } } instead of a when(action) cascade; optional preloadedState overlays restored models at construction.
redux-kotlin-routing-codegen	KSP processor for the routing DSL — @Reduce / @ReduxInitial annotations generate the ReduxModule wiring. Repo tool: not yet published to Maven Central.

Compose

Module	Purpose
redux-kotlin-compose	Compose integration — bind store fields to Compose State<T> with fieldState / selectorState.
redux-kotlin-compose-multimodel	Compose fieldState(Model::field) bindings for ModelState stores.
redux-kotlin-compose-saveable	StateSaver + rememberSaveableState store-anchored snapshot persistence for Compose (survives rotation + process death) via Compose SaveableStateRegistry.

DevTools (experimental)

Module	Purpose
redux-kotlin-devtools-*	DevTools family — action/state inspection, diffing, and pipeline timing for a running app. Published (experimental — exempt from semver until the surface stabilizes): core, bridge, remote, inapp, inapp-noop (release no-op facade), ui. Unpublished repo tools: standalone (Compose desktop monitor app) and cli (the rk-devtools terminal tool).

Community

Presenter-middleware (archived)
A middleware for writing concise UI binding code and no-fuss lifecycle/subscription management. The repository is archived and no longer maintained.