Traccar

Traccar is a free and open source GPS tracking platform that provides real-time tracking of vehicles, people and other assets. Written in Java and released under the Apache licence, it has become one of the most widely used open source tracking servers, largely because of its exceptionally broad hardware compatibility: Traccar supports hundreds of communication protocols and thousands of GPS device models from a large number of manufacturers. The project addresses the cost and lock-in that often come with proprietary telematics platforms. Organisations can download the server, install it on their own infrastructure under Windows, Linux or other environments, and connect existing devices without paying per-unit software fees. For those who prefer not to self-host, the project also offers a hosted service and commercial support options. Its core approach combines a lightweight server that decodes and stores device data with a modern web interface for monitoring, configuration and reporting.

Functionality includes live tracking on a choice of map layers, route history playback, geofencing, and event notifications for conditions such as ignition changes, over-speeding, alarms, geofence entry and exit, and device status. Notifications can be delivered through the web interface, email, SMS and mobile push messages. Reporting covers trips, stops, summaries, events and chart-based analysis, and maintenance tracking reminds users about scheduled servicing based on distance or engine hours. Users, groups and permissions can be organised hierarchically, supporting both single-fleet deployments and service providers managing multiple customers. Official mobile applications are available for Android and iOS, including a client app that turns a smartphone into a tracking device. A documented REST API and WebSocket interface allow developers to integrate Traccar with custom dashboards, dispatch systems and business applications. The platform is used by hobbyists, small businesses, fleet operators and telematics companies building their own services. Pricing is not published in this listing; the core software itself is open source and free to use, with paid hosting and support offered separately.