Open-source Samsara alternatives

Traccar is a GPS tracking platform that is free and open source. The main repository holds its Java back-end server, which handles over 200 GPS protocols and more than 2000 models of tracking devices out of the box. It works with major SQL databases and exposes a REST API.

It suits anyone who tracks vehicles, assets or people, such as fleet operators, GPS tracking resellers that run a white-label platform of their own, and individuals following their own devices. Features include real-time tracking, driver behavior monitoring, detailed and summary reports, geofencing, alarms and notifications, account and device management, and email and SMS support.

The wider platform includes a browser-based web app, the Traccar Manager mobile app for viewing devices and the Traccar Client app for tracking phones themselves. You can self-host Traccar for free, with a Docker Compose quick start using MySQL that serves the app on port 8082, or use official managed hosting. The code is licensed under Apache-2.0.

DGIoT is an open-source industrial Internet of Things platform. It collects data from machines and sensors using industrial protocols such as Modbus, OPC UA and MQTT, with the project advertising support for more than 300 protocols, and it is aimed at factories, energy sites and system integrators building monitoring and control applications.

The README describes an aggregation engine built on Erlang/OTP in which every device gets its own process acting as a shadow, with an ontology layer that covers data, logic and action, and security with roles and access control. It stores time series data in TDengine, and topics reference digital twins, edge computing, SCADA and low-code configuration. Documentation includes architecture diagrams, storage design and station simulation.

DGIoT is licensed under Apache-2.0 and is deployed on your own servers, with a vendor website in Chinese. It suits industrial IoT teams who want an open platform for device connectivity, rules and visualization.