Realtime Made Easy As Pie

Realtime Pub/Sub SDKs for web, mobile, desktop and IoT

<5ms
Message delivery: 99.999%
Uptime SLA: 7+
Global regions: ∞
Auto-scaling

Subscribe On Client-side

Using PieSocket you can build fast and secure realtime apps that scale to millions of users—and never miss a beat. No matter how large your audience is, we've got you covered, with our 24x7 support and battle tested technology.

Publish From Any-side

PieSocket REST APIs allow you to publish messages on the WebSocket server with a simple POST request. This enables you to publish events and payloads from server-side as well.

All you ever need from a realtime service and more.

Simple pricing, Beautiful UI, Powerful APIs, Handy SDKs. PieSocket is making realtime technology less complex with its WebSocket related innovations.

Auto-scaling: Go beyond the limits of your PieSocket cluster. No need to worry about traffic spikes.
Server-to-client Messaging: Send notifications, events and messages to clients from server.
Client-to-client Messaging: Publish messages directly from a client to another and build serverless applications.
Webhooks: Execute server-side code on message events with a POST request sent from PieSocket servers to yours.
Authentication: Secure your PieSocket Cluster with a JWT authentication token.
Custom Domain: Realtime API with your own domain such as wss://yourdomain.com.
Analytics: Detailed reporting of your daily usage, connections and messages with beautiful graphs and dahsboards.
Logs: Download CSV logs of all messages through your PieSocket cluster in realtime.

What you can build

Anything that needs to update instantly — PieSocket handles the WebSocket infrastructure so you can focus on the product.

Live Chat & Messaging

Build real-time chat rooms, direct messaging, and support widgets. Messages delivered in under 5ms.

Multiplayer & Collaboration

Presence tracking, cursor sync, and shared state for collaborative editing and multiplayer games.

Live Dashboards

Stream metrics, trades, sensor data, and analytics to dashboards without polling.

Push Notifications

Deliver instant in-app notifications and alerts to any connected client the moment an event occurs.

IoT & Device Sync

Connect devices, sensors, and embedded systems over a persistent WebSocket connection at scale.

Activity & Presence Feeds

Show who's online, what they're doing, and fire live activity events across your application.

Super-fast

Performace at any scale

PieSocket is designed to absorb millions of connections coming in at once for applications with bursty traffic, without performance degradation, and has presence in 7+ regions.

Under 5 milliseconds distribution: We deliver messages under 5 milliseconds + the ping time, at any scale.
Auto-scaling.: No upper-ceiling for scaling.
99.999% uptime SLA: PieSocket is highly available and powers many mission-ciritical applications.

SDKs for every platform

Official SDKs for web, mobile, and server. Or connect with any standard WebSocket client using the raw API.

JavaScript

Browser & Node.js

piesocket-js

Android

Java / Kotlin

piesocket-android

iOS

Swift

piesocket-swift

Flutter

Dart

piesocket-dart

React Native

JavaScript

piesocket-js

Python

Server-side

piesocket-python

Node.js

Server-side

piesocket-nodejs

Raw WebSocket

Any language

wss://api

Webhooks & message logs

Execute server-side code on message events — PieSocket POSTs a signed payload to your endpoint. Download full CSV logs of every message flowing through your cluster.

Webhook fired on every message event
Signed payloads for verification
Configurable per channel or cluster-wide
Full CSV log export from the dashboard
Real-time log streaming available

webhook.sh

# Publish a message via REST API
curl --request POST \
  'https://CLUSTER_ID.piesocket.com/api/publish' \
  --header 'Content-Type: application/json' \
  --data '{
    "key": "YOUR_API_KEY",
    "secret": "YOUR_SECRET",
    "roomId": "chat-room",
    "message": "Hello world!"
  }'

# PieSocket will POST to your webhook URL:
# POST https://yourapp.com/webhook
# {
#   "event": "message",
#   "channel": "chat-room",
#   "data": { "text": "Hello world!" }
# }

Secure by default

All connections are TLS-encrypted. Lock down channels with JWT authentication so only authorised clients can subscribe.

JWT-based channel authentication
Per-channel access control
API key + secret for server publishing
Webhook signature verification
Custom auth endpoints supported
TLS on all WebSocket connections

Your domain, your brand

Point your own domain to your PieSocket cluster and connect clients over wss://realtime.yourapp.com. Full analytics and per-channel dashboards included.

Create a Channel

Custom domain

Use wss://realtime.yourapp.com instead of a piesocket.com subdomain.

Analytics & reporting

Daily message counts, connection trends, and per-channel breakdowns — all in one dashboard.

Message logs

Export a full CSV of every message flowing through your cluster at any time.

7+ global regions

Deploy your cluster in the region closest to your users for the lowest possible latency.

US East (Virginia)US West (Oregon)Europe (Frankfurt)Asia Pacific (Singapore)Asia Pacific (Mumbai)South America (São Paulo)Middle East (Bahrain)

Frequently asked questions

Realtime Made Easy As Pie

Subscribe On Client-side

Publish From Any-side

Super-fast

Frequently asked questions

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