SignalDB is an open-source reactive client-side database for JavaScript applications. It provides MongoDB-like queries and live updates for interfaces built with frameworks such as React, Vue, Svelte, and Solid.
💡 Pick it when you need production-grade offline sync, conflict handling, and a larger JavaScript database ecosystem.
RxDB is a realtime database for JavaScript applications. It is designed to handle complex data structures, synchronization, and offline-first capabilities.
Free and open-source
David Fahlander
💡 Choose it for a lightweight, TypeScript-friendly IndexedDB layer instead of SignalDB's broader reactive abstraction.
Dexie is a JavaScript wrapper around the browser's IndexedDB storage system. It is aimed at developers who need structured local persistence, indexed...
Free, open source; optional Dexie Cloud paid
💡 Pick it when reliable CouchDB-compatible replication matters more than SignalDB's lightweight reactive API.
PouchDB is an open-source JavaScript database that syncs data across devices.
Nozbe
💡 Use it for React Native apps with large offline datasets and SQLite performance requirements.
WatermelonDB is an open-source reactive database optimized for React Native and other mobile applications. It uses SQLite-backed storage and lazy loading to...
Free, open source
TinyBase contributors
💡 Choose it when you want a compact reactive store with built-in local-first primitives and framework integrations.
TinyBase is a small reactive data store for local-first JavaScript applications. It offers tables, relationships, checkpoints, persistence, synchronization utilities, and integrations for...
Free, open source
💡 Pick it when SignalDB's client-only model is insufficient and you need synchronized PostgreSQL data.
Electric provides outsourced IT support, endpoint management, onboarding, and employee-facing technology services for growing companies. Its platform combines a service desk with...
Custom pricing
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