Products

Open source

Signal Lab

Network protocol testing app for OSC, UDP, TCP, HTTP, WebSocket and MQTT. Send messages, emulate devices and reproduce network failures. Validate integrations with repeatable scenarios through the desktop interface, CLI or MCP.

For interactive installations, IoT and service testing.

Capabilities

  • OSC / UDP / TCP

    Send messages and inspect incoming device traffic.

  • HTTP / WebSocket

    Test APIs and realtime connections.

  • MQTT

    Work with an MQTT 3.1.1 client and broker.

  • CLI / MCP

    Run experiments from CI and connect AI assistants.

Get started

  1. Install the Windows or Linux app. For browser access, deploy the server using the Docker guide.
  2. Choose a protocol, enter the device address and port, and send a test message.
  3. Save repeatable checks as experiments. Use the documented CLI or MCP interface for automation.

The desktop app supports Windows and Linux. EXE, MSI, DEB and RPM packages include the CLI; separate archives are available for CI.

Documentation

Download and install

Latest release
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