INDEPENDENT MACOS BROWSER 01—03 / A WORKSPACE, IN MOTION

Keep the thread.

Your projects, with room to think.
Try Cairn’s Spaces, pins, and split view below.

macOS 14+ Experimental developer preview

THE WORKSPACE INTERACTIVE PREVIEW

Try a Space. Open a page. Make room for a second.

Sample pages · no network requests RESEARCH / 01

THIS IS A WEBSITE PREVIEW — an illustration of Cairn’s ideas, not the native app or its Chromium engine.

.workbench, .preview-caption .text-action { display: none; }JavaScript is needed for the interactive preview. Cairn’s details and download links below work without it.

THREE WAYS TO KEEP YOUR PLACE 02—03 / THE DETAILS

A little structure.
More room to think.

One Space per thread

Keep research, projects, and everything else apart. Each Space remembers its own tabs and layout.

Keep the useful bits

Pin the pages you come back to. They stay close while the rest of a session changes around them.

Two pages. One thought.

Split the view when you need to compare, follow instructions, or keep a reference in sight.

UNDER THE SURFACE 03—03 / ENGINE STATUS

The web should feel
like the web.

Cairn’s Chromium source build embeds the real Chromium Embedded Framework, with modern rendering, JavaScript modules, and responsive CSS.

Read the engine and security status

MADE TO BE OPENED UP

Make it
your own.

Cairn is an independent, clean-room project—not a fork of Arc or affiliated with The Browser Company. The source is Apache-2.0 licensed. Read it, build it, make it yours.

Explore the source

AFOR YOUR MAC

Try the developer preview

Homebrew installs the published universal WebKit preview for Apple Silicon and Intel.

brew install --cask mrashrhodes/cairn/cairn

Ad-hoc signed, not Apple-notarized. macOS may block it. Do not disable system security protections to run it.

Release notes and downloads

BFOR BUILDERS

Build the Chromium workspace

For developers with Swift 6 and Apple’s Command Line Tools. The guide covers both supported architectures.

git clone https://github.com/MrAshRhodes/cairn.git
cd cairn
python3 engine/tool.py fetch
python3 engine/tool.py build
make app

Build instructions and requirements

A browser should open the web.
Not ask you to join another thing.

Read our privacy notes