Nox

Smart theme controller for every website. Dark mode, light mode, and everything in between.

Dark mode for every website — instant, intelligent, and beautiful. Nox is a smart theme controller that detects whether a site is already dark or light, then applies pixel-perfect inversion only when needed. No more double-inverting dark sites. Features: • One-click dark or light mode for any website • Smart detection — skips inversion if the site already matches your chosen theme • Per-site settings that persist across visits • Normal and high contrast modes • Images, videos, and iframes stay natural (not inverted) • Keyboard shortcut (Alt+D) for instant toggling • Lightweight — pure CSS filter, no heavy processing Works on every website. No configuration needed — just click and go.