Realtime Backend

Skytable is a free and open-source realtime NoSQL database that aims to provide flexible data modelling at scale.

Open Source

Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.

Open Source

KeyDB is fast NoSQL database with full compatibility for Redis APIs, clients, and modules.

Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.

Open Source

Serious realtime infrastructure

freemium

Depend on Socket to protect your app from malicious dependencies lurking in your open source supply chain.

SignalR is a server-side software system designed for writing scalable Internet applications, notably web servers.

Dragonfly - Scalable in-memory datastore made simple

Open Source

PubNub is a real-time messaging system for web and mobile apps that can handle API for all platforms and push messages to any device anywhere in the world in a fraction of a second without having to worry about proxies, firewalls or mobile drop-offs.

Realtime Messaging is a cloud based message broker. Enabling developers to build cross-platform apps that require realtime communication

a lightning fast realtime data-store that connects browsers, smartphones, backends and the IoT - complete with realtime search, publish-subscribe and request-response

Open source, real time API platform

An open, scalable realtime engine for Node.js

Open Source