The Arc keyboard shortcuts that work in Rio

Every one of the 28 Mac shortcuts on Arc's Keyboard Shortcuts help page works in Rio with the same keys: Cmd+T for the command bar, Cmd+S for the sidebar, Cmd+Shift+K to clear Today tabs, Ctrl+1 to jump to a space. Rio is a free, open-source Chromium browser for Mac, and you can change any shortcut in Settings.

Published November 12, 2026.

Same keys, same jobs

Arc's help center has a Keyboard Shortcuts page that lists 28 shortcuts for the Mac in three groups. I checked each one against Rio's key table, the file that sets every shortcut in Rio's menus and command bar. All 28 are there, on the same keys.

Everyday use

What it does	Keys	Rio's name for it
New tab	Cmd+T	New Tab, opens the command bar
New window	Cmd+N	New Window
New private window	Cmd+Shift+N	New Private Window
Close the tab	Cmd+W	Close Tab
Little Arc	Cmd+Option+N	New Mini Window
Reopen the last closed tab	Cmd+Shift+T	Reopen Closed Tab
Pin or unpin the tab	Cmd+D	Pin or Unpin Tab
Copy the page's URL	Cmd+Shift+C	Copy URL
Copy the URL as Markdown	Cmd+Shift+Option+C	Copy URL as Markdown
Change the tab's URL	Cmd+L	Open Location
Show or hide the sidebar	Cmd+S	Toggle Sidebar
Clear unpinned tabs	Cmd+Shift+K	Clear Today Tabs

Moving around

What it does	Keys	Rio's name for it
Go to tab 1 to 9	Cmd+1 to Cmd+9	Go to Tab 1 to 9
Go to space 1 to 9	Ctrl+1 to Ctrl+9	Space 1 to 9
Toggle between recent tabs	Ctrl+Tab	Next Recent Tab
Next or previous tab	Cmd+Option+Down, Cmd+Option+Up	Next Tab, Previous Tab
Next or previous space	Cmd+Option+Right, Cmd+Option+Left	Next Space, Previous Space
Forward	Cmd+] or Cmd+Right	Go Forward
Back	Cmd+[ or Cmd+Left	Go Back
Add a split view	Ctrl+Shift+Plus (=)	Add Split View
Close a split view	Ctrl+Shift+Minus	Separate Pane
Focus split pane 1, 2, 3	Ctrl+Shift+1, 2, 3	Focus Pane 1 to 4

The page

What it does	Keys	Rio's name for it
History	Cmd+Y	Show History
Zoom in	Cmd+Plus	Zoom In
Zoom out	Cmd+Minus	Zoom Out
Reset zoom	Cmd+0	Actual Size
Reload	Cmd+R	Reload Page
Find in page	Cmd+F	Find in Page

Keys Rio adds

A few things Rio does have their own keys:

Cmd+Shift+L opens the Library, with your downloads, screenshots and archived tabs.
Shift+Cmd+2 starts a capture: drag over part of the page and the image goes to your clipboard.
Cmd+Shift+O turns the link you are Peeking at into a tab.
Ctrl+Shift+] and Ctrl+Shift+[ move to the next and previous split pane.
Cmd+Shift+D shows the toolbar, an address bar across the top of the page.
Cmd+Shift+M mutes or unmutes the tab.
Cmd+Shift+Backspace opens Clear Browsing Data.

The Help menu has Essential Keyboard Shortcuts, and the command bar finds it if you type shortcuts.

Change any of them

Open Settings and pick Shortcuts. Every command in the key table is listed with its keys, and a search box finds commands by name or by keys. Click a field and press the keys you want. If they already belong to another command, Rio tells you which one and offers Replace. Each changed row has its own reset, and Reset All Shortcuts puts everything back.

Your keys apply everywhere at once: the menus, the command bar and Peek all pick them up as soon as you change them.

Bring the rest of Arc too

The shortcuts are half of it. Rio's import brings your spaces, pinned tabs, folders and favorites in one step, so the keys have the same sidebar to work on.

Download Rio for Mac

Questions

Does Cmd+T open a new tab in Rio?

It opens the command bar, as it did in Arc. Type an address, a search or part of an open tab's name, then press Return.

How do I switch spaces with the keyboard?

Ctrl+1 to Ctrl+9 jumps to a space. Cmd+Option+Right and Cmd+Option+Left move to the next and previous one. On a trackpad, swipe with two fingers.

What does Cmd+Option+N do in Rio?

It opens a Mini window, a small Rio window for a quick look at a link. It is the same key Arc used for Little Arc.

Can I change Rio's shortcuts?

Yes. Settings, Shortcuts lists every command with its keys. Click a field and press the new keys. If they belong to another command, Rio names it and offers Replace. Each changed row has its own reset, and Reset All Shortcuts puts everything back.