Simon Willison’s Weblog

togeojson (via) Handy JavaScript library and command-mine tool for converting KML and GPX to GeoJSON, by Tom MacWright

Posted 18th January 2019 at 11:50 pm

Recent articles

First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026
Fly's new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time - 9th January 2026

geo 13 kml 8 geojson 15 tom-macwright 15

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe