Observed arrival · 2026-10-25

PortDock: a workshop of Windows communication tools

portdock.dev Visit website

Editorial interest 83/100 Selection signal · not a rating of the site

PortDock presents ten free, open-source Windows utilities for testing serial, Modbus, TCP/UDP, and instrument communications.

Landing page captured for the 2026-10-25 issue.

For: Industrial technicians and engineers troubleshooting equipment communications
Worth noticing: The homepage lists 45 domestic equipment Modbus register maps, with manual sources and JSON format.

Field notes

The tool pages divide testing into distinct jobs, from scanning industrial network devices to simulating serial or TCP/UDP equipment. The homepage describes serial framing controls for quiet intervals, terminators, fixed lengths, and Modbus RTU, and says outgoing bytes can be previewed before sending. Its guide section covers troubleshooting as well as reference topics such as sensor signals and motor calculations.

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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