Arc vs Opera in 2026

Arc and Opera both reject the idea that a browser should be a tab strip and an address bar, but they are reacting to different problems. Arc is trying to fix how you organise work. Opera is trying to fix how much software you need open at once.

Two ways to rethink the window

Arc replaces the tab strip entirely. Tabs live in a collapsible left sidebar, grouped into Spaces — separate environments for work, personal, a specific project — each with its own tabs, bookmarks and theme. Tabs you stop using expire on their own, so the list stays short instead of collapsing into unreadable slivers. Split view and a keyboard-driven command bar are built in. For people who hold several contexts at once, this is a genuine structural improvement rather than decoration.

Opera keeps a conventional layout and adds to the edges. Its sidebar pins WhatsApp, Telegram and Instagram beside the page, and includes an AI assistant, workspaces and split-screen browsing. Its distinctive advantage is a free VPN, which Arc has no equivalent for at any price. Opera also ships a built-in ad blocker; Arc blocks ads and trackers too, so on that front they are level, though neither approaches Brave.

Platform support and project health

Platform support is the practical dividing line and it is not close. Opera runs on Mac, Windows, Linux, iOS and Android. Arc runs on Mac and Windows only, with no Linux build and only a companion app on mobile. If you want the same browser on your phone and your laptop, Opera can do that and Arc cannot.

There is one more thing to weigh on Arc. The Browser Company has moved its development attention to Dia, its newer AI-first browser, so Arc now receives maintenance rather than active feature work. It is stable and supported, but it is not where the company is investing, which matters if you are considering rebuilding your daily workflow around it.

Privacy is a wash — Arc scores 3, Opera 3 — and neither is the right answer if that is your priority.

Which should you choose?

Choose Arc if you are on a Mac or Windows machine, juggle more projects than a tab bar can hold, and want a browser that actively organises them. Nothing else here is as good at that — but Arc has been frozen since 2025, so you are adopting a finished product rather than a growing one, while Opera is still actively developed.

Choose Opera if you need Linux or mobile, want a free VPN, or like having messaging pinned beside your browsing. It is the safer long-term bet of the two, simply because it is still being actively built.