OpenMES
OpenMES: A broad open-source MES for teams that need production, quality, traceability, and connectivity. Ranked #18 of 31 in Manufacturing Execution Systems by our editors (7.2/10); pricing: Free plan; best for budget-conscious teams wanting open-source MES.
At a glance
- Editor score7.2 / 10
- PricingFree plan
- Best forBudget-conscious teams wanting open-source MES
- Free planYes
- Paid fromFree
- Work order managementYes
- Facts checked20 Sep 2026
Where it wins
- Covers work orders, scheduling, OEE, quality, and traceability
- Connects with MQTT, Modbus, OPC UA, REST APIs, ERP, and SCADA
- Supports self-hosted deployment under the AGPL-3.0 license
Where it doesn't
- Self-hosting may require internal technical ownership
- Enterprise modules and services are separate from the community edition
- OpenMES Online is described as coming soon
Our verdict on OpenMES
OpenMES is a web-based, open-source manufacturing execution system for small, mid-sized, and larger manufacturers. It brings together work-order lifecycle tracking, visual scheduling, shop-floor execution, quality checks, lot and serial traceability, reporting, inventory, and machine connectivity. The product is a fit for manufacturers seeking a broad MES scope with self-hosted deployment and an open-source licensing model, particularly when production data needs to connect with existing ERP, SCADA, PLC, or IoT environments.
Its ecosystem fit is a central strength. OpenMES supports REST APIs and industrial protocols including MQTT, Modbus, and OPC UA, with integrations spanning ERP systems, SCADA, PLCs, IoT sensors, Wapro Mag, and Subiekt NEXO PRO. Shop-floor screens cover batch execution, counts, downtime, and issues, while real-time monitoring and OEE reporting provide operational visibility. Warehouse, inventory, barcode, and RFID management extend the system beyond production scheduling into material handling and traceability.
The platform also offers meaningful breadth for an open-source MES: quality control includes defect tracking, inspections, and SPC; traceability covers lots, batches, and serial numbers; and ERP data exchange links factory activity with business systems. Community users can self-host under the AGPL-3.0 license. An enterprise offering adds advanced modules, implementation services, dedicated support, and cloud or on-premise deployment options, including hybrid arrangements. OpenMES suits teams that value control, industrial connectivity, and a wide operational feature set. Organizations wanting a narrowly focused production tool, or a managed online experience immediately, should consider alternatives.
Your product? Our editors can test OpenMES in depth and publish a review, labelled as paid · from $149/mo →
OpenMES pricing
OpenMES fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Work order management | Yes |
| Quality management | Yes |
| Lot and serial traceability | Yes |
| Shop-floor data capture | Yes |
| Real-time dashboards | Yes |
| Deployment | Hybrid |
| ERP integration | Yes |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Compliance & security | 2FA |
| Support | Email, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 10 integrations: ERP systems, SCADA, PLC, IoT sensors, MQTT, Modbus … See all → |
| Pricing | Free plan |
| Website | getopenmes.com |
| Facts checked | 20 Sep 2026 |
OpenMES integrations
OpenMES lists 10 integrations on its own site.
- ERP systems
- SCADA
- PLC
- IoT sensors
- MQTT
- Modbus
- OPC UA
- REST API
- Wapro Mag
- Subiekt NEXO PRO
See all OpenMES integrations →
Alternatives to OpenMES
- Siemens OpcenterA broad MES portfolio for manufacturers that need execution, quality, traceability, and planning.9.4
- Plex MESA broad cloud MES for manufacturers that need connected production, quality, inventory, and mobile workflows.9.2
- GE Vernova Proficy Plant ApplicationsA broad MES for production visibility, traceability, quality, and ERP-connected operations.9.1
See all OpenMES alternatives →
Also Ranked In
OpenMES is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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