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Pusher

APIs for realtime features and notifications

Realtime DatabasesFree Tier Available300K+
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Overview

Pusher is a hosted API service for adding realtime functionality to web and mobile applications. It provides a suite of products including Channels (pub/sub messaging), Beams (push notifications), and Chatkit (in-app chat). What makes Pusher special is its simplicity - you can add realtime features to any application without managing infrastructure. Pusher Channels provides WebSocket connections with fallback to HTTP streaming, handling all the complexity of maintaining persistent connections at scale. The platform includes presence channels for tracking online users, private channels for security, and client events for peer-to-peer messaging. With SDKs for 40+ languages and frameworks, Pusher integrates seamlessly into existing applications. Used by companies like GitHub and Mailchimp for realtime features. Unlike full-stack BaaS platforms, Pusher focuses exclusively on realtime messaging, making it perfect for adding notifications, live updates, or collaboration features to existing applications without rebuilding your entire backend.

Features

Database: NoSQL
Authentication
File Storage
Cloud Functions
Realtime
GraphQL
REST API
Self-Hosted

Tech Stack

WebSocketHTTP

Best For

Realtime featuresNotificationsChatLive updates

Pricing

Free Tier:Yes
Starting Price:$0
Model:Free tier + connection-based pricing

Details

Deployment:Managed
Founded:2010
Backed By:Venture-backed

Compliance

SOC 2GDPR

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Frequently Asked Questions about Pusher

What is Pusher?

Pusher is a hosted API service for adding realtime functionality to web and mobile applications. It provides a suite of products including Channels (pub/sub messaging), Beams (push notifications), and Chatkit (in-app chat). What makes Pusher special is its simplicity - you can add realtime features to any application without managing infrastructure. Pusher Channels provides WebSocket connections with fallback to HTTP streaming, handling all the complexity of maintaining persistent connections at scale. The platform includes presence channels for tracking online users, private channels for security, and client events for peer-to-peer messaging. With SDKs for 40+ languages and frameworks, Pusher integrates seamlessly into existing applications. Used by companies like GitHub and Mailchimp for realtime features. Unlike full-stack BaaS platforms, Pusher focuses exclusively on realtime messaging, making it perfect for adding notifications, live updates, or collaboration features to existing applications without rebuilding your entire backend.

Is Pusher free to use?

Yes, Pusher offers a free tier. Free tier + connection-based pricing

What features does Pusher offer?

Pusher offers NoSQL database, authentication, real-time updates, REST API, and more.

Can I self-host Pusher?

No, Pusher is a Managed platform and cannot be self-hosted.

What is Pusher best for?

Pusher is particularly well-suited for realtime features, notifications, chat, live updates.