Subscribe to browser storage. Typed keys, reactive updates, cross-tab sync — no boilerplate.

creo-ui — Editor Mode reference runtime for SolidJS. Live design surface with console REPL, auto-discover, URL share, cross-tab sync, and export-to-patch.

Typed browser session lifecycle for modern web apps — one API for visibility, focus, connectivity, idle, page lifecycle, and cross-tab, with optional session intelligence and DX. Observe browser state. Derive session intelligence. React with confidence.

Lightweight Proxy-free React state management. Direct mutations, tracked array methods, built-in undo/redo time travel, cross-tab sync, atomic transactions, and localStorage persistence. Zero dependencies, ~2KB, TypeScript-first.

This is a simple library for sending data between browser tabs. It uses storage events for same domain use, and adds in postMessage with an iframe for cross domain messaging. There is also a [redux middleware](https://github.com/stutrek/cross-tab-middlewa

kevy in the browser — Redis-compatible KV + TTL + pub/sub compiled to WebAssembly, with OPFS/IndexedDB persistence and cross-tab pub/sub. Zero dependencies.

Angular Signals + BroadcastChannel state broker for micro-frontends. Synchronises state across MFEs and browser tabs via localStorage persistence and BroadcastChannel cross-tab sync.

A lightweight, persistent, reactive browser cache with background refresh and cross-tab sync. Works like a normal cache but supercharged with sticky TTL and offline support.

Eidos — offline-first abstraction layer. resource() + action() auto-generate Service Workers, cache strategies, and an IndexedDB action queue with idempotency keys and cross-tab replay locks.

The HTTP layer under TanStack Query, SWR and Vue Query — it handles auth so they don't have to. Coalesced token refresh, Web Worker token isolation, cross-tab session sync. Zero dependencies.

Cross-tab IndexedDB sync via SharedWorker

Collabs cross-tab synchronization using BroadcastChannel

Browser runtime for the Sharpps framework - event-driven pipeline processors, HTTP client, and cross-tab communication.

Cross-tab synchronization plugin for Storix.

Tab view component for React Native

React bindings for tabcoord — cross-tab state sync, leader election, locks, event bus

A content-agnostic drag-and-drop dashboard library for Angular 15. Multi-workspace, persistent layout, pop-out windows, live cross-tab sync.

Typed pub/sub event bus for JORVEL micro-frontends with wildcard, replay, and cross-tab support.

Secure, encrypted cross-tab communication in the browser

Caching system for Nuxt with IndexedDB, automatic refetching, and cross-tab synchronization