Simon Willison’s Weblog

PaintbrushJS. Impressive open source JavaScript library from Dave Shea for applying image filters (sharpen, blur, emboss, greyscale etc) to the canvas element.

Posted 9th October 2010 at 11:53 am

Recent articles

Qwen3-4B-Thinking: "This is art - pelicans don't ride bikes!" - 10th August 2025
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

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