Eclipse Ditto
An open-source dashboard tool for the Internet of Things (IoT) that provides a visual interface for creating and managing digital twins. [Link]
OpenFog:
An open-source platform for creating and managing digital twins for the Internet of Things (IoT) and other connected devices.
Node-RED:
A flow-based programming tool for the Internet of Things (IoT) that provides a visual interface for creating and managing digital twins. [Link]
InfluxDB/MongoDB:
An open-source time-series database for storing and analyzing real-time data that is well-suited for digital twin implementations.
Grafana
Dashboards for the Internet of Things (IoT) and other data sources, making it well-suited for digital twin implementations.
Apart from above tools below one is , A collaborative project by Microsoft and BMW that aims to provide open-source tools and technologies for implementing digital twin
Conclusion: These open-source tools provide a range of capabilities, including real-time data monitoring, advanced analytics, and more, making them well-suited for organizations looking to implement digital twin technology. Additionally, their open-source nature means that they are often more customizable and cost-effective than proprietary solutions.