Dark Side of the Web

Toggle dark or light mode per site, with brightness, contrast, blue-light filter, and a global whitelist.

Dark Side of the Web flips any website to dark or light mode with a single click. The toolbar icon swaps between a rainbow spectrum prism (when dark mode is active) and a monochrome prism (when light mode is active) so the current state is always visible at a glance. How the filter works The extension reads the page's natural background color and inverts only when it does not match the chosen mode. A light page becomes dark; a dark page becomes light. Pages whose natural mode already matches yours are left untouched, so an already-dark site never flashes to white. Features * One-click toggle from the toolbar icon or the popup's segmented switch (Dark side / Light side) * Brightness and contrast sliders, fine-tuned per site * Blue light filter: a warm sepia / hue-rotate tint for late-night reading * Per-site whitelist: add a hostname to keep it untouched forever * SPA-aware: single-page apps (React, Vue, Next.js) are re-evaluated on navigation * Iframe-aware: embedded content is filtered with the host page * Flash prevention: a dark mask sits over the page until the filter is applied Design A prism + spectrum identity inspired by the cover of Pink Floyd's "The Dark Side of the Moon". The same spectrum gradient is the visual signature of the toolbar icon, the popup's accent bar, the segmented control underline, and every slider track. A monochrome variant of the icon is shown when light mode is active, so the toolbar always telegraphs the current state. Privacy No tracking, no analytics, no remote calls. All settings (mode, sliders, whitelist) are stored locally in chrome.storage.local and never leave the device. The only network resource the extension ever references is the "Buy me a coffee" link in the right-click menu, which opens in a new tab only when you click it.