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Description
One-click dark mode for every website. Tune brightness, contrast and sepia, or switch it off per site. A Don's Tools extension. Knight Don brings one-click dark mode to every website, even the ones that never built a dark theme of their own. Flip it on and the whole web goes easy on your eyes. Smart about pages that are already dark. Knight Don detects sites that already have a dark theme and steps aside, so it never washes them out or flips them back to light. Everything else gets a clean, readable dark treatment. Make it yours. Fine-tune brightness, contrast, sepia, and grayscale until it looks right for you. Adjust it globally or per site. Per-site control. Turn Knight Don off for a single site in one tap, or build include and exclude lists so it runs exactly where you want. Run it on all sites except your exclude list, or only on the sites you choose. Automation. Keep dark mode on all the time, follow your operating system's dark mode, or schedule it to switch on in the evening and off in the morning. Handy extras: Keyboard shortcut to toggle dark mode instantly (default Alt+Shift+D). Export and import your settings to back them up or move them between computers. A dedicated advanced settings page for lists, automation, and appearance. Private by design. Knight Don runs entirely in your browser. There are no accounts, no sign-up, and nothing is ever uploaded. It does not track you and it does not collect your browsing history. Free forever, from Don's Tools. Visit donstools.com for more free, private, browser-based tools.