Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Socket.io Alternatives
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Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.
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SignalR is a server-side software system designed for writing scalable Internet applications, notably web servers.
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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.
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Serious realtime infrastructure
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NATS Server is an open source messaging system for cloud native applications, IoT messaging, and microservices architectures.
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An open, scalable realtime engine for Node.js
Related status pages
Firebase status · Pusher status · SignalR status · PubNub status · Ably.io status · NATS status · SocketCluster status ·SaaSHub's Down Detector checks the status of services automatically and regularly. However, we cannot promise 100% accuracy. That is why we depend on user reported issues as well. The Socket.io status here can help you determine if there is a global outage and Socket.io is down for everyone or it is just you that is experiencing problems. Please always report any issues to help others know the current status.