About Percentage Difference Calculator

Percentage Difference Calculator is a static utility built for people who need a symmetric readout between two numbers without installing software.

The interface leans on a dark neon HUD metaphor so contrast stays high during late-night reviews. Motion stays light, and reduced-motion settings calm the hero edge treatment.

We keep copy in JSON, routing in the static generator, and math in Alpine on the page so Cloudflare Pages deployments stay simple and fast.