The Géoplateforme is the new national infrastructure for geographic data in France, designed to offer administrations a unified, scalable, and sovereign environment for storing, distributing, and visualising geospatial information. It provides a full suite of mutualized services—from secure hosting and high‑performance data distribution to ready‑to‑use visualization tools—that allow public bodies to focus on their missions rather than on infrastructure. On top of these core capabilities, the platform also delivers reference geocoding and reverse‑geocoding, altimetry services, and route and itinerary computation, making it a comprehensive ecosystem for producing and consuming geodata at national scale. This infrastructure guarantees sovereign and secure access to geographical data and maps without relying on Gafam services.

To build this platform, we relied heavily on open‑source technologies, combining mature, community‑driven components with tools specifically developed at IGN to meet national requirements.

Finally, we are committed to open‑sourcing the code behind our infrastructure and progressively sharing the building blocks that power the Géoplateforme and cartes.gouv.fr. Our strategy is not only to publish code, but to build a real community around it, inviting administrations, researchers, companies, and contributors to shape its evolution. By opening the doors to collaborative development, we aim to create a sustainable and transparent geospatial commons for France—one that grows through shared expertise, pooled investment, and a collective ambition to strengthen national geodata services through open innovation.