Indoor · 3D · MapLibre

3D building maps: floors, basements, interiors.

I build interactive 3D building and indoor map experiences on MapLibre, 100% open source: no per-view licensing, self-hostable, standards-based.

FR : expériences cartographiques 3D de bâtiments — étages, sous-sols, intérieurs — sur MapLibre, open source.

Demos — click, everything runs in the browser

Gare de Lyon, level by level

From the RER D platforms (level −4) upward: real OpenStreetMap geometry, a floor selector, labels and markers at each level's own altitude.

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Opening the ground

The map cuts open above the station: the underground levels appear, and the city stays intact around them.

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Select inside a building

Manhattan: a marker on every rooftop, click to select the building — the core gesture of a housing configurator.

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From the ground to orbit

Three cameras on one object at 500 km — altitude as a working axis, not a limit.

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Products — Confinia

Two playing fields, one foundation: the physical world in 3D, in the browser — from basements to orbit.

EcoBuilding

The ecological identity card of every French building — energy rating, rental bans, natural risks, groundwater, solar potential, sale prices: all open data, in 3D.

ecobuilding.confinia.io →

Overwatch

Live satellite positions and decoded open telemetry — the ground segment, in the browser.

overwatch.confinia.io →

Offer

Pilot

Your building, interactive, within 30 days — from your floor plans, IFC or OpenStreetMap: level selector, points of interest, unit highlighting, embedded in your site.

Fixed price — on quote

Development

Configurators (pick an apartment), passenger wayfinding, BIM/Revit integration, underground infrastructure.

Day rate — on request

Care

Maintenance of your map stack, upgrades, and representation of your needs inside the MapLibre project.

Monthly retainer

Why me

Indoor is not new to me — founder of OpenIndoor (3D indoor mapping on OpenStreetMap, 2020–2022). And I contribute to MapLibre's core — project Voting Member. The standard change allowing underground levels (foundations, parking, platforms) merged in August 2026 on my proposal; the rendering implementation is in review. Every demo above builds on that work.
MapLibre GL JSmaplibre-style-spec 3D / terrain / globeOpenStreetMap indoor WebGLTypeScript