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Protomaps is an open source system for interactive web maps, like this one:

There are three major parts of Protomaps:

  • PMTiles, an open archive format for pyramids of tile data, accessible via HTTP Range Requests.
  • An ecosystem of tools and libraries for creating, serving and manipulating PMTiles.
  • A cartographic "basemap" showing features in the world like roads, water bodies and labels, based on the OpenStreetMap dataset, and delivered as one big PMTiles archive.

Each of these parts has a corresponding section in the documentation.

If it's your first time trying Protomaps, the Getting Started guide will demonstrate all parts of the system.

An open source mapping system released under the BSD and ODbL licenses.