Observed arrival · 2026-09-27

OpenGTB’s field toolbox for building automation

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Editorial interest 79/100 Selection signal · not a rating of the site

Twelve browser-based tools for building-automation and IoT integrators, covering LoRaWAN payloads, Modbus registers, HVAC conversions, and system sizing.

Landing page captured for the 2026-09-27 issue.

For: Building-automation and IoT integrators
Worth noticing: The LoRaWAN decoder lists support for 900+ TTN devices and offers downloadable codecs for TTN v3 and ChirpStack v4.

Field notes

The catalog is divided into five areas, from technical building blocks and sizing to regulation and commissioning. Some entries carry an “à venir” label, including a BACnet/Modbus PCAP analyzer and a Niagara Trends export validator; the journal, meanwhile, shows practical integration topics such as a CoolMaster, Distech controller, and Niagara 4 setup. The site says project saving, API access, and dedicated instances belong to its paid offer.

Observed signals

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○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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