--- url: https://lit-ui-router.dev/packages.md description: >- Optional packages that layer extra integrations on lit-ui-router — Effect, MobX and TC39 Signals bindings, the Navigation API location plugin, server-side routing verdicts, static prerendering, framework-agnostic Signals, Effect and MobX mirrors of the router, typed state names and params, and directive-aware ESLint rules — each independently versioned with its own guide and API reference --- # Companion Packages `lit-ui-router` is the core package. **Companion packages** layer optional integrations on top of it — each is published and versioned independently and depends on the core only as a peer, so you add exactly the ones you need and nothing you don't. ## Published | Package | Version | What it is | | ----------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | [**eslint-plugin-lit-ui-router**](/packages/eslint-plugin) | [![NPM Version](https://img.shields.io/npm/v/eslint-plugin-lit-ui-router)](https://npmx.dev/package/eslint-plugin-lit-ui-router) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=eslint-plugin-lit-ui-router@*)](https://lit-ui-router.dev/gh/releases/eslint-plugin-lit-ui-router/latest) | ESLint rules that understand the router's directives: six rules covering hrefless anchors, inert `href`s, misplaced directives, and each of the three ways a link goes active without saying so to assistive technology. | | [**lit-ui-router-effect**](/packages/lit-ui-router-effect) | [![NPM Version](https://img.shields.io/npm/v/lit-ui-router-effect)](https://npmx.dev/package/lit-ui-router-effect) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=lit-ui-router-effect@*)](https://lit-ui-router.dev/gh/releases/lit-ui-router-effect/latest) | [Effect](https://effect.website) bindings: a `SubscriptionRef` of the route and ref-following Lit controllers that keep components in sync with router state. | | [**lit-ui-router-mobx**](/packages/lit-ui-router-mobx) | [![NPM Version](https://img.shields.io/npm/v/lit-ui-router-mobx)](https://npmx.dev/package/lit-ui-router-mobx) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=lit-ui-router-mobx@*)](https://lit-ui-router.dev/gh/releases/lit-ui-router-mobx/latest) | [MobX](https://mobx.js.org) bindings: an observable `RouterStore` and reaction-based Lit controllers that keep components in sync with router state. | | [**lit-ui-router-signals**](/packages/lit-ui-router-signals) | [![NPM Version](https://img.shields.io/npm/v/lit-ui-router-signals)](https://npmx.dev/package/lit-ui-router-signals) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=lit-ui-router-signals@*)](https://lit-ui-router.dev/gh/releases/lit-ui-router-signals/latest) | [TC39 Signals](https://github.com/tc39/proposal-signals) bindings: watcher-based Lit controllers over `ui-router-signals` that keep components in sync with router state. | | [**lit-ui-router-ssr**](/packages/ssr) | [![NPM Version](https://img.shields.io/npm/v/lit-ui-router-ssr)](https://npmx.dev/package/lit-ui-router-ssr) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=lit-ui-router-ssr@*)](https://lit-ui-router.dev/gh/releases/lit-ui-router-ssr/latest) | Static prerendering: a `ui-router-server` mount table in, an emitted site out — one html file per shell verdict, a host rules file for the redirects. | | [**ui-router-effect**](/packages/ui-router-effect) | [![NPM Version](https://img.shields.io/npm/v/ui-router-effect)](https://npmx.dev/package/ui-router-effect) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=ui-router-effect@*)](https://lit-ui-router.dev/gh/releases/ui-router-effect/latest) | [Effect](https://effect.website) for UI-Router: a framework-agnostic `SubscriptionRef` of the router's current state, with no Lit dependency. | | [**ui-router-mobx**](/packages/ui-router-mobx) | [![NPM Version](https://img.shields.io/npm/v/ui-router-mobx)](https://npmx.dev/package/ui-router-mobx) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=ui-router-mobx@*)](https://lit-ui-router.dev/gh/releases/ui-router-mobx/latest) | [MobX](https://mobx.js.org) for UI-Router: a framework-agnostic observable store of the router's current state, with no Lit dependency. | | [**ui-router-navigation-location-plugin**](/packages/navigation-plugin) | [![NPM Version](https://img.shields.io/npm/v/ui-router-navigation-location-plugin)](https://npmx.dev/package/ui-router-navigation-location-plugin) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=ui-router-navigation-location-plugin@*)](https://lit-ui-router.dev/gh/releases/ui-router-navigation-location-plugin/latest) | A location plugin that manages URLs with the modern [Navigation API](https://developer.mozilla.org/en-US/docs/Web/API/Navigation_API) and exposes the router in navigation events. | | [**ui-router-registry**](/packages/ui-router-registry) | [![NPM Version](https://img.shields.io/npm/v/ui-router-registry)](https://npmx.dev/package/ui-router-registry) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=ui-router-registry@*)](https://lit-ui-router.dev/gh/releases/ui-router-registry/latest) | A location plugin that manages URLs with the modern [Navigation API](https://developer.mozilla.org/en-US/docs/Web/API/Navigation_API) and exposes the router in navigation events. | | [**ui-router-server**](/packages/server) | [![NPM Version](https://img.shields.io/npm/v/ui-router-server)](https://npmx.dev/package/ui-router-server) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=ui-router-server@*)](https://lit-ui-router.dev/gh/releases/ui-router-server/latest) | Server-side routing verdicts: honest 404/302/200 HTTP for static SPAs, run at the edge with the client's own route table. | | [**ui-router-signals**](/packages/ui-router-signals) | [![NPM Version](https://img.shields.io/npm/v/ui-router-signals)](https://npmx.dev/package/ui-router-signals) [![GitHub Release](https://img.shields.io/github/v/release/simshanith/lit-ui-router?filter=ui-router-signals@*)](https://lit-ui-router.dev/gh/releases/ui-router-signals/latest) | [TC39 Signals](https://github.com/tc39/proposal-signals) for UI-Router: a framework-agnostic signal mirror of the router's current state, with no Lit dependency. | Each package page has its own install snippet, guide, and — where the package has a runtime API — its own reference. The Effect, MobX and Signals bindings each come as two packages: a framework-agnostic one for `@uirouter/core`, and a Lit one for `lit-ui-router`. The [Effect](/packages/effect), [MobX](/packages/mobx) and [Signals](/packages/signals) overviews say which to install. `eslint-plugin-lit-ui-router` is the odd one out: it ships lint rules rather than runtime code, so its only peer is `eslint` rather than the router itself. Its `1.0` line is stable, and its [semver policy](/packages/eslint-plugin#semver-policy) treats any tightening of `recommended` as a major. `ui-router-server` is still an early `0.x` line: it ships, this site's own Worker runs it in production, and its API can still move in a minor. The [package page](/packages/server), the [Server-Side Routing guide](/guides/server-route-matching), and the [sample app](/sample-app) cover what it answers. `lit-ui-router-ssr` builds on those verdicts: it renders each shell verdict into a static html file with the router handed to `@lit-labs/ssr`.