Simon Willison’s Weblog

How The Post is replacing Mapbox with open source solutions (via) Kevin Schaul describes the Washington Post’s emerging open source GIS stack: OpenMapTiles, Maputnik, PMTiles and Maplibre-gl-js.

Posted 17th February 2023 at 6:45 pm

Recent articles

Useful patterns for building HTML tools - 10th December 2025
Under the hood of Canada Spends with Brendan Samek - 9th December 2025
Highlights from my appearance on the Data Renegades podcast with CL Kao and Dori Wilson - 26th November 2025

maps 43 opensearch 3 openstreetmap 50 washington-post 9

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