3 items
A comfortable palette for every website. Follow your system or choose dark or light mode, saved per site. Give your favorite websites a softer appearance with Noctra. Noctra adds dark and light modes to websites—even those without a built-in theme. Follow your system settings or choose an appearance for each website. Three appearance modes Choose System, Dark, or Light. Light mode also works on websites with a native dark appearance. Preferences saved per website Set your preferred appearance once. Noctra remembers it and keeps your open tabs in sync. Two convenient controls Change modes from the floating moon button or the popup behind Noctra’s pinned toolbar icon. Thoughtful color adjustments Noctra adjusts backgrounds, text, and borders individually, preserving accent colors and leaving images, videos, and canvas content unchanged. Smoother loading Early theme styling helps prevent bright flashes, while newly loaded page content is themed automatically. Keyboard support Navigate the controls with Tab, arrow keys, Enter, and Escape. Noctra runs locally in your browser. No account, analytics, or external data transmission. Your website preferences stay in local extension storage. Works on most standard websites. Browser settings pages, extension stores, and some complex website elements cannot be themed.
Sep 12, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.