Cairn Is Now Available on Chrome and Firefox — Build Your Private Second Brain for the Web

Cairn Is Now Available on Chrome and Firefox

We are excited to announce that Cairn, the newest browser extension from UnifyBrowse, is now available for both Google Chrome and Mozilla Firefox.

Cairn is a private and powerful personal library for everything you discover online. It gives you a better way to save, organize, read, and rediscover useful content without relying on crowded browser bookmarks, endless open tabs, or scattered notes.

Whether you are collecting programming tutorials, research material, recipes, design inspiration, travel ideas, videos, articles, images, or important passages, Cairn helps you turn what you find into a structured and searchable knowledge library.

You can learn more about Cairn on the official product page:

Visit the Cairn website

Why We Built Cairn

The web contains an incredible amount of useful information, but keeping track of it can be difficult.

Traditional bookmarks often become long, unorganized lists. Open tabs are easy to lose and can quickly become overwhelming. Notes saved in different applications are disconnected from their original pages, and articles placed in a read-later list may never be opened again.

Cairn was created to solve this problem by combining bookmarking, web clipping, reading, highlighting, organization, and search in one private browser extension.

Instead of simply saving a URL, Cairn helps you build a useful personal knowledge system around the content that matters to you.

Save Content From Anywhere on the Web

Cairn makes it easy to add new content to your library without interrupting your workflow.

You can use Cairn to:

• Save the current webpage with one click
• Capture selected text from an article or webpage
• Save supported links through the right-click context menu
• Save images directly to your library
• Save supported YouTube and Vimeo pages
• Add personal notes to saved items
• Assign tags while saving content
• Choose a collection directly from the quick-save popup

The browser popup is designed for fast saving and quick searches, while the full Cairn library provides more advanced tools for browsing, editing, and organizing your content.

Organize Your Knowledge With Nested Collections

Everyone organizes information differently, so Cairn gives you a flexible collection system.

You can create broad collections such as:

• Work
• Programming
• Design
• Research
• Recipes
• Travel
• Ideas
• Read Later

You can then create nested collections whenever you need a deeper level of organization.

For example, a Programming collection could contain subcollections for JavaScript, Rust, databases, system design, and useful development tools. A Travel collection could be divided by country, city, accommodation, and places to visit.

This structure keeps your library clean as it grows and makes it easier to find related resources later.

Search Everything You Have Saved

Saving information is only useful when you can find it again.

Cairn includes powerful library search and filtering tools that help you rediscover previously saved content. You can search using information such as:

• Page titles
• Website names
• Tags
• Personal notes
• Saved article text

You can also filter your library using collections, tags, favorites, content types, and other available organization options.

Instead of trying to remember the exact name of a page, you can search for a topic, note, tag, or phrase connected to it.

Read Articles Without Distractions

For longer articles, Cairn includes a clean reader mode that removes unnecessary page elements and presents the content in a more comfortable reading layout.

Reader mode helps you focus on the article itself without navigation menus, advertisements, sidebars, popups, or unrelated page content.

You can also highlight important passages while reading. Your highlights remain connected to the saved article, making it easy to return to key ideas later.

Cairn can remember your reading position as well, allowing you to continue from where you previously stopped.

Favorites, Archives, Tags, and Notes

Cairn includes several tools for keeping a growing library manageable.

Mark important resources as favorites so they remain easy to access. Archive content that you want to keep but no longer need to see regularly. Add tags to connect related items across different collections, and write notes to record why you saved something or how you plan to use it.

These tools allow Cairn to work as more than a bookmark manager. It can become a personal reference library for projects, learning, research, and everyday life.

A Private and Local-First Library

Privacy is a core part of Cairn.

Cairn does not require an account, and your saved library is not uploaded to an external server. Your webpages, notes, tags, collections, highlights, and other saved information remain stored locally in your browser on your device.

This local-first approach gives you control over your personal library without requiring an online account or cloud-based knowledge service.

Export and Back Up Your Library

You remain in control of your data.

Cairn allows you to export your complete library as a JSON backup. You can keep this backup in a safe location and import it again later when needed.

You can also permanently delete all locally stored Cairn data from the extension whenever you choose.

Choose a Theme That Fits Your Workflow

Cairn includes multiple appearance options so you can choose a reading and library experience that feels comfortable.

Available themes include:

• Light
• Dark
• Midnight
• Sepia
• System

The system option automatically follows your browser or operating system appearance.

Who Is Cairn For?

Cairn can be useful for anyone who regularly discovers valuable information online.

It is especially helpful for:

• Developers saving documentation and tutorials
• Designers collecting references and inspiration
• Students organizing research and study material
• Writers collecting sources, ideas, and quotations
• Researchers building topic-based libraries
• Professionals managing industry resources
• Travelers organizing destinations and guides
• Anyone looking for a better alternative to browser bookmarks

A Better Alternative to Bookmarks and Open Tabs

Browser bookmarks are useful for storing links, but they were not designed to become a complete personal knowledge library.

Cairn adds the structure needed to make saved information useful over time: searchable content, nested collections, tags, notes, highlights, favorites, archives, reader mode, and backup tools.

It helps transform information you might otherwise forget into a library you can continue using.

Install Cairn

Cairn is now available for Google Chrome and Mozilla Firefox.

Choose your browser and start building a more organized, searchable, and private second brain for the web.

Install Cairn from the Chrome Web Store

Install Cairn for Firefox

Explore Cairn on UnifyBrowse

Cairn is developed by UnifyBrowse, where we build browser tools designed to make everyday browsing more productive, organized, and useful.