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Guides and comparisons

• Rio, an Arc alternative for Mac. Arc stops working on December 22, 2026. Rio is a free, open-source Chromium browser for Mac that imports your Arc spaces, pinned tabs and favorites.
• Questions about Rio. Answers about Rio, the sidebar browser for Mac: notarization, price, updates, privacy, extensions, the Arc import and bug reports.
• Move from Arc to Rio. Move from Arc to Rio in one step. Rio reads Arc's files on your Mac and brings over spaces, pinned tabs, folders, favorites, passwords and sign-ins.
• Rio vs Arc. Rio vs Arc, row by row with sources: sidebar, extensions, open source, account, speed and memory. Arc stops working on December 22, 2026.
• Rio vs Dia. Rio vs Dia with sources. Arc stops working on December 22, 2026. Rio keeps Arc's spaces as spaces, needs no account and is open source.
• Rio vs Safari. Rio vs Safari with sources. Rio runs Chrome Web Store extensions and imports your Arc spaces in one step. Safari does neither.
• Rio vs Zen. Rio vs Zen with sources. Both are free and open source. Rio runs Chrome Web Store extensions, and its Arc import also brings pinned tabs and sign-ins.

Features

• The command bar. Press Cmd+T in Rio to switch to an open tab, search, open an address, run a command or ask ChatGPT, Claude or Grok.
• The Library. Rio's Library keeps downloads, screenshots, your spaces and archived tabs in the sidebar. Open it with Cmd+Shift+L and drag files straight into other apps.
• Side panel extensions. Rio runs Chrome's side panel extensions. They open on the right, next to the page, as in Chrome. Arc does not support them.
• Spaces. Rio's spaces give each part of your day its own pinned tabs, folders, Today tabs, colors and logins. Swipe to switch. Rio imports your Arc spaces.
• Split view and Peek. Rio's split view puts 2 to 4 pages side by side, each with its own address bar. Shift-click a link to Peek at it without leaving your page.