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fluidsim cpu

A free fluid simulation — play it in your browser, no install. Interactive CPU-based 2D fluid simulation in JavaScript and Canvas.

by @freddycoppa · freddycoppa/fluidsim-cpu on GitHubLANG JavaScriptHOSTED ON FREDDYCOPPA.GITHUB.IOUPDATED 4 Jul 2026

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Best with a keyboard. Controls: Move mouse: inject velocity into the fluid · Click / hold mouse: add density

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From the README

An interactive 2D fluid simulation written in JavaScript and rendered with the HTML Canvas 2D API.

This project implements a CPU-based Eulerian fluid solver. Density is carried through a velocity field, user input injects smoke and motion, and the result is visualized as colorful fluid-like motion directly in the browser.

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