Side by side
OpenMES vs SimpleMES
Both stand on manufacturing execution systems. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Open source AndroidAPIiPhone+5
OpenMES covers production monitoring, scheduling, work orders, traceability, and quality in one system. Its free Community plan and self-hosting option serve single-site needs, while advanced modules and dedicated SLA support are part of Enterprise.
Visit OpenMES Free plan APILinuxSelf-hosted+1
Choose SimpleMES if you need an open-source system to track shop-floor activity, production details, and component traceability, with ERP use optional. Look elsewhere if you require a built-in costing module or need a release described as beyond pre-release.
Visit SimpleMESThe facts
| OpenMES | SimpleMES | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Yes | Not published |
| Runs on | Android, API, iPhone, Linux, Mac, Self-hosted, Web, Windows | API, Linux, Self-hosted, Web |
| Lowest paid plan | Enterprise annual: €5,000 a year | Not published |
| Plans published | 4 | None |
| Maker | Not published | Not published |
| Website | getopenmes.com | simplemes.github.io |
| On manufacturing execution systems | #1 of 32 | #3 of 32 |
OpenMES: what it does well
- Real-time monitoring and automatic OEE calculation
- Tracks LOTs and serial numbers
- Connects equipment through OPC UA, MQTT, and Modbus
- Tablet app supports offline work and automatic sync
What to know first
- Community plan is designed for single-site operations
- Hosted cloud subscription is still being explored
SimpleMES: what it does well
- Tracks work orders and lot or serial numbers.
- Records production details, components, and defects.
- Supports manual or scanner-based component assembly.
- Can be deployed in cloud or internal environments.
- Custom fields and scripted logic support configuration.
What to know first
- The project is described as pre-release.
- It does not currently include a costing module.
- Its demo database is periodically purged.
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