# Arc

The spatial browser that put Spaces, Split View, and a sidebar-first layout ahead of tabs — now in maintenance mode while its maker builds an AI-first successor.

- **Category:** [Utilities](https://notchlist.vercel.app/category/utilities/)
- **Price:** Free
- **Open source:** no
- **Official site:** https://arc.net/
- **Available via:** Homebrew, Direct
- **Maker:** The Browser Company (Atlassian)

## Kitsmith's take

Still the browser to try if the standard tab bar has never made sense to you — Spaces and the sidebar remain the most-copied idea in browser UI this decade. The honest caveat: The Browser Company (now owned by Atlassian) stopped building new Arc features in 2025 to focus entirely on Dia, its AI-first browser. Arc still works and gets security patches, with no announced shutdown date.

## Features

- **Spaces:** Organize tabs into separate named workspaces and switch between them instantly.
- **Sidebar-first layout:** Tabs live in a vertical sidebar instead of a horizontal bar, with folders for pinned and archived tabs.
- **Split View:** View and interact with two tabs side by side in one window.

## FAQ

**Is Arc still being developed?**

No new features — The Browser Company moved its team to a new browser, Dia, in 2025. Arc still receives security and bug fixes, with no announced shutdown date.

**Is Arc free?**

Yes, free to download and use, with no paid tier.

**What replaced Arc?**

The Browser Company’s new focus is Dia, an AI-first browser aimed at a different, more mainstream audience than Arc’s power-user base.


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Hand-verified listing on Kitsmith: https://notchlist.vercel.app/apps/arc-browser/