Moon: Dark Mode & Blue Light Filter

A privacy-first dark mode, blue-light comfort, and contrast companion for the web.

Moon gives every website a comfortable, consistent dark theme without compromising your privacy. Unlike basic dark mode filters, Moon intelligently recolors each part of a page. Backgrounds, gradients, text, borders, and UI elements are adjusted individually, while photos, videos, and icons remain untouched. The result is a natural-looking dark mode without the washed-out effect of simple inversion. Moon adapts in real time. It works seamlessly with single-page apps, infinite scroll, and dynamically loaded content, so pages stay consistent without needing refreshes. Contrast Guardian ensures readability by checking text contrast against a 4.5:1 WCAG AA standard and automatically correcting anything that falls short. Comfort Drift gradually warms your screen in the evening, creating a smooth transition that is easier on your eyes instead of an abrupt change. You stay in control. Enable or disable Moon per site, fine-tune intensity, or switch rendering modes. All preferences are stored locally and follow your setup. Instantly compare with the original page by holding Alt+Shift+P to preview unmodified colors. Moon is built to respect your privacy. There are no accounts, no ads, and everything runs on your device. Optional anonymous analytics, enabled by default and easy to turn off, only tracks feature usage. It never collects browsing history, page content, or personal settings. Read the full privacy policy: https://zektek.com/moon/privacy/