Open Arc

Open Arc is an independent, free and open-source browser for macOS, built on Chromium with a native Swift and SwiftUI shell.

It supports Spaces, Profiles, Favorites, pinned tabs, nested folders, Split View, Peek, Little Arc, a command bar and automatic tab archiving. Arc sidebar import recreates supported Spaces, themes, folders, tabs, Favorites and split views without modifying the source data. History and saved passwords are separate import options when supported data is detected. Cookies, website sign-ins, extensions and all Arc settings are not transferred.

Browser data is stored locally on the Mac. Optional sidebar sync uses the user's private iCloud database; no Open Arc account is required. Basic usage sharing can be disabled in Settings.

The current release requires macOS 14 or later on Apple silicon. It does not include every Arc feature, and does not currently support Widevine DRM. Open Arc is not affiliated with The Browser Company.

Spaces organize project tabs and folders. Each Space uses one Profile; multiple Spaces can share a Profile. Profiles separate local cookies and sign-ins, while Favorites are shared across Spaces within a Profile. Arc sidebar import places Spaces in the current Profile; existing Profile boundaries and website sessions are not recreated automatically. Setup guide: https://getopenarc.app/blog/spaces-and-profiles