Your gateway
to the web

A Mac browser that keeps work, personal life and side projects in separate Spaces, each with its own tabs, profile and color. It runs on Chromium, so your sites and extensions work.

macOS 26 or later · Free and open source · v0.1.0 beta

Shaar (שער) means gateway in Hebrew

Arcusis at arcusis.com

This is a working copy of Shaar. Click a tab, switch Spaces with the dots, or click the address to open Command-T.

Shaar is in public beta. Expect bugs, and report them on GitHub.

Release notes for 0.1.0

Tabs, accounts and pages, each in its place

Spaces hold your tabs, profiles hold your accounts, and Command-T finds any page.

A Space for each part of your day

Each Space has its own tabs, pinned pages, folders and color. Switching Spaces leaves every tab where you left it.

⌃⌥[]

Shaar in the Hasbara Space, in its own color, on hasbara.co.il

Accounts stay in their profile

A profile keeps its own cookies, sign-ins, history and extensions. Two Spaces can share one profile when you want the same accounts in both, and Shaar guides you through Google and Microsoft sign-in.

Shaar Settings showing the Work profile used by the Work, Hasbara and Freight Spaces, and a separate Personal profile

Command-T finds tabs, pages and commands

Type to search open tabs, history, bookmarks and browser actions. Arrow keys pick a result and Return opens it.

⌘T

Command-T launcher searching for freight across history, open tabs and Spaces

Site permissions in one panel

The button next to the address opens camera, microphone, location and notification settings for the site, its certificate, and Reload, Hard Reload or Clear Site Data.

Site control center on arcusis.com with permissions, the secure connection and reload actions

Extensions from the Chrome Web Store

Install any extension from the Chrome Web Store and turn it on or off for each profile.

Shaar on arcusis.com with Dark Reader and Bitwarden from the Chrome Web Store in the toolbar

Open source under MPL-2.0

Shaar is independent. The full source is on GitHub, so you can read it, build the app yourself, or file an issue.

Download Shaar for Mac

Download for MacApple silicon

Free · macOS 26 or later · Apple silicon · What's new in 0.1.0