SSE Client

Connect to Server-Sent Events streams for real-time updates

Server-Sent Events Client
disconnected
Connect to SSE streams for real-time server-to-client updates.
Event Stream
No events yet. Connect to an SSE endpoint to start receiving events.
About Server-Sent Events

Server-Sent Events (SSE) is a standard for server-to-client streaming over HTTP. Unlike WebSocket, SSE is unidirectional (server to client only) but simpler to implement.

Auto-reconnect - Browser automatically reconnects on disconnect
Event IDs - Resume from last event after reconnection
Event Types - Custom event names for categorization
Text-based - Simple text/event-stream format

Features

  • Connect to any SSE endpoint
  • View events in real-time
  • Filter events by type
  • Event statistics and counts
  • Automatic reconnection
  • Event ID tracking
  • Export event logs
  • Pause/resume display

Frequently Asked Questions

What are Server-Sent Events?

Server-Sent Events (SSE) is a standard for server-to-client streaming over HTTP. Unlike WebSocket, SSE is unidirectional but simpler to implement and works through proxies.

When should I use SSE vs WebSocket?

Use SSE when you only need server-to-client updates (news feeds, notifications, live scores). Use WebSocket when you need bidirectional communication (chat, gaming, collaborative editing).

Does SSE support reconnection?

Yes, the browser automatically reconnects if the connection drops. It also sends the last event ID so the server can resume from where it left off.

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