WebSocket Tester

A precise WebSocket tester designed for developers to quickly verify connections, send messages, and observe real-time data flows without coding.

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976+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

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About This Tool

The tool provides a WebSocket testing environment to validate live servers and client implementations in real-time. It supports text and binary payloads, configurable headers, and multiple concurrent sessions. Users connect to a ws or wss URL, negotiate subprotocols, send messages, and observe framed responses with timing data. Conceptually, it maintains client sessions, records per-message timestamps, and logs sequence integrity to aid debugging and verification. The platform emphasizes protocol conformance, latency metrics, and exportable data for analysis. This combination benefits developers, QA engineers, and operators integrating real-time features into dashboards, chat apps, or telemetry pipelines. Core capabilities include connection lifecycle management, payload editors, and telemetry dashboards, while advanced options cover automatic reconnects, backoff strategies, and CI-friendly exports. Unique value lies in built-in latency calculations, per-message timing, and multi-session workflows that support reproducible testing scenarios across environments.

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How to Use

Provide inputs: enter target ws/wss URL, optional headers and subprotocols, and choose payload type.
Configure payloads: input text or provide base64 for binary, and set a few canned messages if needed.
Connect: start the session to initiate the WebSocket handshake and establish the channel.
Send & observe: dispatch messages, monitor responses, and review latency and framing statistics in real time.
Analyze & export: review logs, export as JSON/CSV for CI or offline analysis, and iterate with adjusted parameters.

Frequently Asked Questions

Find Quick Answers

How is latency measured?

Latency is computed per message as the difference between the send timestamp and the receive timestamp in milliseconds. The tool also provides average latency, max latency, and jitter metrics over the active session, along with per-message logs for traceability.

Can I test binary frames?

Yes. Set payload_type to binary and provide a base64-encoded payload. The tool decodes, sends as a binary frame, and records the echoed payload if the server returns it, along with framing validation results.

What happens on connection loss?

If reconnect_on_error is enabled, the tool uses a backoff strategy to re-establish a session automatically. If disabled, the session ends and logs capture the error details for subsequent inspection.

Can I export results?

Yes. Results can be exported in JSON or CSV formats, including per-message timing, payload content, and error records, enabling offline analysis and integration with CI pipelines.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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