Pusher | Leader In Realtime Technologies
Simple, scalable and reliable. Hosted realtime APIs loved by developers and trusted by giants. Build live dashboards, notifications, geotracking, chat and more.
Categories:
Pusher provides scalable hosted realtime APIs for building live features like notifications, chat, dashboards, and location tracking in web and mobile apps, primarily for developers.
🚀 Overview
Pusher is a leader in realtime technologies, offering hosted APIs that enable instant data synchronization and bi-directional communication in applications.
This project solves the challenges of implementing and scaling realtime features, such as managing WebSocket connections, handling high traffic spikes, and ensuring reliable delivery without building custom infrastructure. It is built for developers and teams creating web, mobile, and IoT apps that need live updates, from indie makers to enterprises like The Washington Post and GitHub. Pusher was developed to make realtime simple, scalable, and reliable, allowing devs to ship features fast with minimal code.
Acquired by MessageBird in 2020, Pusher continues to power billions of messages monthly.
✨ Key Features
- Channels: Realtime pub/sub messaging for live dashboards, chat, collaborative editing, presence detection, and location tracking (ultra-low latency WebSockets with fallbacks)
- Beams: Cross-platform push notifications for Android, iOS, web, and more
- Advanced: Private channels, webhooks, queryable API, end-to-end encryption, GDPR/HIPAA compliant
- 40+ SDKs across platforms; experimental: deeper monitoring integrations
🛠 Tech Stack
- Frontend: JavaScript (pusher-js), React Native, Swift (iOS), Kotlin/Java (Android)
- Backend: Node.js, PHP, Python, Ruby, .NET, Go server libraries
- Database: N/A (managed realtime infrastructure)
- Auth: API Keys, Cluster, App ID/Secret
- Hosting: Pusher Cloud (MessageBird), scalable to 100B+ messages
👥 Who Is This For?
This project is useful for:
- Developers who want to add realtime without managing servers
- Teams looking for reliable pub/sub and notifications at scale
- Indie makers building gaming, collaboration tools, activity feeds
📸 Screenshots / Demo
- Live demo: https://pusher.com/channels
- GitHub: https://github.com/pusher
🔥 Project Status
- 🟢 Actively building
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Freemium (Sandbox free: 200k messages/day, 100 connections for Channels; 1k subscribers for Beams. Paid from $29-$49/mo scaling to Enterprise.)
Is the source code available?
Yes — link to repository https://github.com/pusher (40+ SDKs and libs open source) No — core hosted service proprietary
Can I contribute?
Yes, open issues, submit PRs to SDK repos on GitHub; provide feedback via support portal or Twitter.
📬 Contact & Links
- Website: https://pusher.com
- GitHub: https://github.com/pusher
- Twitter/X: https://x.com/pusher
- Email: Via https://pusher.com/contact or support.pusher.com
Built with ❤️ and kept warm on WarmIndex.
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