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Life & fun · March 27, 2023

JavaScript Version of Douglas Hofstadter's Copycat

A JavaScript implementation of Douglas Hofstadter and Melanie Mitchell's Copycat program. - Paul-G2/copycat-js

JavaScript Version of Douglas Hofstadter's Copycat launched on March 27, 2023 with 23 votes, #1,730 of 5,007 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 3 years on.

In plain words

This is a JavaScript implementation of Douglas Hofstadter's Copycat, a cognitive science program that solves analogy problems by recognizing patterns and making conceptual connections. It's designed for anyone interested in artificial intelligence, cognitive modeling, or exploring how machines might approach abstract reasoning. The project recreates the original program's architecture in a modern web-based format, making this classic AI research accessible to developers and researchers.

written from the facts on this page · September 2026

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