React Geiger – performance profiling using sound
In plain words
React Geiger is a performance profiling tool for React applications that uses sound to indicate performance metrics. As the application runs, audio feedback represents different performance states, allowing developers to hear optimization opportunities in real-time. The tool is designed for React developers who want an alternative way to monitor and improve their app's performance through auditory cues rather than traditional visual dashboards alone.
written from the facts on this page · September 2026
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Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
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