Cost / License
- Free
- Open Source
Platforms
- Online


RxDB is described as '(short for Reactive Database) is a NoSQL-database for JavaScript Applications like Websites, hybrid Apps, Electron-Apps and NodeJs. Reactive means that you can not only query the current state, but subscribe to all state-changes like the result of a query or even a single' and is an app in the development category. There are more than 25 alternatives to RxDB for a variety of platforms, including Self-Hosted, Web-based, Mac, Windows and Linux apps. The best RxDB alternative is Supabase, which is both free and Open Source. Other great apps like RxDB are Firebase, Meteor, SignalDB and FerretDB.


RapidStash is a service for rapidly publishing sandbox APIs with just JSON. If you have an idea of what kind of data you want to send and receive but aren’t yet ready to build a backend, just throw some example data in a “stash” and interact with it there.

restdb.io is a Plug-and-Play Database Service, suited perfectly to power business apps and dynamic web content.



PouchDB is an open-source JavaScript database inspired by Apache CouchDB that is designed to run well within the browser.
Real-time communication service for connecting online devices. Infrastructure and APIs for IoT, gaming, apps and real-time web.

EasyBase is a powerful, low-code cloud database with a self-building API and visual query builder. It integrates well with React components.




Yjs is a CRDT implementation that exposes its internal data structure as shared types. Shared types are common data types like Map or Array with superpowers: changes are automatically distributed to other peers and merged without merge conflicts.
SapphireDb is an open source library that enables you to easily create your own application with realtime data synchronization. It extends your Asp.Net Core Application with EF Core and combines the advantages of firebase and .Net Core together.

OrbitDB is a serverless, distributed, peer-to-peer database. OrbitDB uses IPFS as its data storage and IPFS Pubsub to automatically sync databases with peers. It's an eventually consistent database that uses CRDTs for conflict-free database merges making OrbitDB an excellent...
Hoodie enables you to express yourself through technology by making web app development very fast, easy and accessible.
It’s a complete backend for your apps: develop your frontend code, plug it into our API and your app is ready.
The Appcelerator platform is everything you need to create great, native mobile apps—all from a single JavaScript code base.




Appcelerator is the most popular commercial alternative to RxDB.