Nchan Alternatives

Realtime application framework (Node.JS server)

Open Source

A scalable server for realtime webapps

As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more

Try for free paid Free Trial $15.0 / Monthly (125+ Documents)

The Autobahn project provides open-source implementations of the The WebSocket Protocol and The Web...

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.

Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.

Open Source freemium $9.0 / Monthly (Plus usage-based costs. (Growth Plan). )

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

Open Source

Simple pub/sub messaging for the web

Open Source

Realtime messaging service

Open Source

NATS.io is an open source messaging system for cloud native applications, IoT messaging, Edge, and microservices architectures.

Open Source

An open source Firebase alternative

Open Source

Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

Send push notifications programmatically at scale

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