Observed arrival · 2026-11-15

WebModbus, a browser-based Modbus workbench

webmodbus.com Visit website

Editorial interest 73/100 Selection signal · not a rating of the site

A browser-based tool for Modbus RTU/ASCII/TCP connections, register and coil operations, polling, and data display.

Landing page captured for the 2026-11-15 issue.

For: People testing or working with Modbus devices
Worth noticing: The interface lists function codes 01–04, 05/06/15/16, plus 16-, 32-, and 64-bit, float, hexadecimal, and binary display options.

Field notes

The interface opens in a disconnected state with no request windows, so the extracted page does not demonstrate a live device exchange. Its menus and descriptions lay out connection types, function codes, data formats, scans, logging, and CSV export. The developer identifies himself by name and links a guide and GitHub account. The page also warns that users are responsible for results, including values written to connected devices.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

◎NicheUnusually specific use

◉HumanPersonal, local, civic, or handmade

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