Simon Willison’s Weblog

Processing.js. John Resig’s outstanding port of the Processing visualisation language to JavaScript and Canvas. Runs amazingly well in Firefox 3. One hell of a hack.

Posted 9th May 2008 at 8:24 am

Recent articles

Highlights from my appearance on the Data Renegades podcast with CL Kao and Dori Wilson - 26th November 2025
Claude Opus 4.5, and why evaluating new LLMs is increasingly difficult - 24th November 2025
sqlite-utils 4.0a1 has several (minor) backwards incompatible changes - 24th November 2025

canvas 38 javascript 725 john-resig 32 processing 3

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