SignalR Web Client

A browser-based tool for connecting to SignalR hubs, invoking server methods, monitoring live events, and saving reusable configurations.

SignalR Web Client is a lightweight browser-based utility for testing, debugging, and exploring SignalR hubs without writing a dedicated client application. Users can connect to a hub using a URL and optional JWT authentication, select a supported transport, and invoke server methods with text, numeric, or JSON arguments.

The client displays invocation responses and records incoming hub events in a real-time log that can be exported for troubleshooting or auditing. Connection and method settings can be saved as reusable JSON configurations, with an explicit security warning before including a JWT in plain text. The interface supports light and dark themes, remembers display preferences, and provides clear connection and reconnection states.

The application requires no build process and can run directly from a web server or as a lightweight Docker container powered by Nginx.

Main capabilities

Connect to SignalR hubs
Optional JWT authentication
WebSockets, Server-Sent Events, and Long Polling
Invoke server methods with typed arguments
Monitor incoming events in real time
Export logs as text, JSON, or HTML
Save and load reusable configurations
Light and dark interface themes
Automatic reconnection handling
Docker-based deployment