PieSocket WebSocket Tester
Extension Actions
- Extension status: Featured
Test Websocket connections with ease, supports both secure (wss) and unsecure (ws) protocols.
PieSocket WebSocket Tester — The Developer's WebSocket Debugging Tool
Only WebSocket client you will ever need!
Test, debug, and monitor WebSocket connections directly from your browser — no external tools or servers needed.
Whether you're building real-time chat apps, live dashboards, trading platforms, or multiplayer games, PieSocket WebSocket Tester gives you everything you need to inspect WebSocket traffic with speed and precision.
Key Features:
Multi-Connection Testing
Run up to 3 simultaneous WebSocket sessions side-by-side in single, dual, or triple panel layouts. Compare server responses across environments without switching tabs.
Supports ws:// and wss://
Full support for both secure (wss) and unsecured (ws) WebSocket protocols. Works with any WebSocket server.
Auto-Reconnect
Configure automatic reconnection with custom retry limits and intervals — simulate real-world client behavior effortlessly.
Heartbeat / Ping Support
Keep connections alive with configurable heartbeat messages sent on a timer. Perfect for testing keep-alive logic on your server.
Message History
Navigate through previously sent messages using keyboard shortcuts — no need to retype payloads during repeated tests.
JSON Pretty-Print
Received messages are automatically parsed and formatted for readability. Toggle between raw and pretty-printed views.
Log Filtering & Search
Filter logs by type (sent, received, error, info) and search across all messages in real time.
Export Logs
Download full session logs as a timestamped .log file for sharing with teammates or filing bug reports.
Live Connection Stats
Track bytes sent, bytes received, message count, and connection duration — all updated live.
Dark Mode
Easy on the eyes during long debugging sessions.
Perfect for:
Backend & full-stack developers testing WebSocket APIs
Frontend developers integrating real-time features
QA engineers validating WebSocket behavior
DevOps monitoring WebSocket server health
Built by PieSocket team from Pie.host— a WebSocket infrastructure platform trusted by developers worldwide.
Latest reviews
- Thiago Lemos
- can we have an option for a dark theme, my eye hurts
- Thiago Lemos
- can we have an option for a dark theme, my eye hurts
- Florian Segginger
- Would be nice if it didn't default to some stupidly long wss URL when you first open it and when you close the socket.
- Florian Segginger
- Would be nice if it didn't default to some stupidly long wss URL when you first open it and when you close the socket.
- Anand Singh
- Must have tool for Websocket developers.
- Anand Singh
- Must have tool for Websocket developers.
- Rabi singh
- Great tool!
- Rabi singh
- Great tool!
- Vicary A
- I was trying to test my AppSync WebSocket connection with it, but this extension does not allow me to specify the graphql-ws protocol in the WebSocket.
- Vicary A
- I was trying to test my AppSync WebSocket connection with it, but this extension does not allow me to specify the graphql-ws protocol in the WebSocket.