Filtered ranking
Best OPC and Industrial Connectivity Software for Linux in 2026
5 of the 10 OPC and industrial connectivity software ranked on listme.name match: they officially support Linux. The order uses the same scores as the full ranking.
The ranking
- 1
Kepware Server
The broadest driver set in this list and one connectivity layer for PLCs, controllers and devices, on Windows and Linux. Licenses are quoted and the trial lasts two hours at a time.
Best for Multi-vendor plants needing one driver layer
WindowsLinuxContact for pricing
- 2
HighByte Intelligence Hub
Edge DataOps software that models OPC UA, Modbus and Sparkplug MQTT data and sends it to IT and cloud systems, on Windows, macOS, Linux or Docker. It is an annual subscription with a free 30-day trial license.
Best for Edge data modeling for a Unified Namespace
WindowsmacOSLinuxSubscription
- 3
open62541
Free MPL-2.0 OPC UA library in C99 that runs on Windows, Linux, RTOS and Android. It suits developers who write their own servers and clients, and it is not a configurable gateway or a client tool.
Best for Developers building OPC UA servers and clients in C
WindowsLinuxAndroidFree and open sourceOpen source
- 4
Telegraf
Open-source MIT agent with OPC UA and Modbus input plugins, built for Windows, macOS and Linux. It collects metrics into time-series and messaging outputs rather than acting as an OPC server or gateway.
Best for Open-source OPC UA and Modbus data collection
WindowsmacOSLinuxFree and open sourceOpen source
- 5
UaExpert
A free OPC UA reference client for browsing, reading, writing and subscribing, on Windows and Linux. It is a testing tool rather than connectivity software, and plugins need keys above set limits.
Best for Testing and commissioning OPC UA servers
WindowsLinuxFree
At a glance
| Product | Score | Price | Platforms | Protocols | License model | Trial |
|---|---|---|---|---|---|---|
| Kepware Server | 92.5 | Contact for pricing | WindowsLinux | Over 150 drivers (vendor site) | Licensed; quote-based | Two hours, restartable |
| 83.5 | Subscription | WindowsmacOSLinux | OPC UA, Modbus, Sparkplug over MQTT, SQL | Annual subscription | Free 30-day trial license | |
| open62541 | 77.5 | Free and open source | WindowsLinuxAndroid | OPC UA (IEC 62541) | Open source under MPL-2.0 | Not needed; source is free |
| 72.0 | Free and open source | WindowsmacOSLinux | OPC UA, Modbus, MQTT, Kafka, AMQP (plugins) | MIT, open source | Not needed; source is free | |
| UaExpert | 70.0 | Free | WindowsLinux | OPC UA client; no device drivers | Free; some plugins need keys | Free version, no trial |

