Cairn

Your second brain for the web — save, organize, and rediscover.

Cairn — your private second brain for the web Cairn is a private, powerful personal library for everything you discover on the web. Instead of losing useful articles, tutorials, recipes, videos, images, ideas, and important passages inside crowded bookmarks or dozens of open tabs, save them to Cairn and organize them in a way that's easy to search and revisit. Save anything, in a click Save the current webpage with one click, capture selected text, or right-click any supported link or image to add it straight to your library. You can also save supported YouTube and Vimeo pages, add personal notes, assign tags, and file everything into collections and nested collections. Keyboard shortcuts make quick saves effortless. Organize the way you think Build a structured knowledge library around your work, interests, research, and everyday life. Create collections such as Work, Programming, Design, Recipes, Travel, Ideas, or Read Later — then add subcollections whenever you need more room. Mark important items as favorites and archive what you no longer need front and center. Find it again, instantly Search your entire library in an instant across page titles, website names, tags, notes, and saved article text. It stays fast well past a thousand saved items, so nothing you save ever gets lost again. A calm home for every new tab Cairn replaces your new tab with a quiet, customizable dashboard. Arrange widgets for recent saves, Rediscover (which resurfaces older items worth another look), a to-do list, a scratchpad, quick links, pinned collections, an inbox for unsorted items, a clock, and an optional weather tile. Search your library or the web right from the top — web searches open with your own default search engine, exactly as you've set it. Choose a background and show only the widgets you actually use. Read without distraction For longer articles, Cairn includes a clean, distraction-free reading view. Highlight the passages that matter and come back later to pick up right where you stopped. Made to feel good to use Use the browser popup for fast saving and quick searches, or open the full library page to browse, organize, edit, and manage everything. Cairn ships with a premium Liquid Glass look by default, plus System, Light, Dark, Midnight, Sepia, Nord, Forest, and Rosé themes. Your library stays yours Cairn requires no account and never uploads your saved content to an external server. Everything is stored locally in your browser, on your device. Export your entire library as a JSON backup, import it again later, or permanently delete all stored data whenever you choose. Install Cairn if you want a more organized, searchable, and private alternative to traditional bookmarks, endless open tabs, and scattered notes.