Simon Willison’s Weblog

html-whitelist (via) DeWitt Clinton’s web service wrapper aroud the html5lib HTML sanitiser, hosted on AppEngine.

Posted 24th September 2008 at 11:54 pm

Recent articles

My Lethal Trifecta talk at the Bay Area AI Security Meetup - 9th August 2025
The surprise deprecation of GPT-4o for ChatGPT consumers - 8th August 2025
GPT-5: Key characteristics, pricing and model card - 7th August 2025

appengine 33 dewitt-clinton 4 html5 83 html5lib 1 sanitisation 1 security 534

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