Simon Willison’s Weblog

JavaScript/CSS Font Detector (via) Really clever trick: detects the fonts that you have installed by writing out some text and measuring its dimensions.

Posted 20th March 2007 at 11:20 pm

Recent articles

How often do LLMs snitch? Recreating Theo's SnitchBench with LLM - 31st May 2025
Talking AI and jobs with Natasha Zouves for News Nation - 30th May 2025
Large Language Models can run tools in your terminal with LLM 0.26 - 27th May 2025

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