Assembly Line

FUXA vs Siemens Opcenter

FUXA and Siemens Opcenter are both manufacturing (mrp/mes) software. FUXA is open source under MIT, with 5.2k GitHub stars. Siemens Opcenter is a commercial product from Siemens.

Which to pick

Pick FUXA when
A plant or integrator wants browser-based HMI screens without licensing a commercial SCADA package.
Pick Siemens Opcenter when
A large manufacturer with complex plant operations wants MES tied to Siemens PLM and automation.

Side by side

What it does

A web-based SCADA and HMI tool for drawing process screens and dashboards connected to PLCs and devices over Modbus, OPC UA, MQTT and Siemens S7.

Siemens' manufacturing operations management portfolio: MES, advanced planning and scheduling, quality and lab management.

Watch out

Fine for monitoring and light control, but it lacks the redundancy and certification that safety-critical sites expect.

It is a portfolio of products needing specialist integrators and substantial investment.

Ready for

Usable

Production-ready

Runs as

Self-hosted server

Self-hosted server and cloud service

Built with

JavaScript, TypeScript, Node.js and Angular

Not published

Source code

Open source, MIT (permissive)

Closed source, sold by Siemens

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Closed source: you use it under the maker's terms and cannot change or resell the code.

How widely known

5.2k GitHub stars

No Wikipedia article of its own

How established

Established: started 7 years ago, latest release v1.3.5.

Not known

Other comparisons

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Every manufacturing (mrp/mes) product and project, ranked

Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.