Is Tab Space a replacement for Safari Tab Groups?

Not exactly — they solve different problems. Tab Groups keep tabs open in persistent workspaces. Tab Space saves your tabs as a session so you can close them and reopen them later. Many people use both: Tab Groups for a few long-lived workspaces, Tab Space for everything they want to save and close.

Can I save all my Safari tabs and close them at once?

Yes. Tab Space saves the whole window (or all windows) as a named session with one click or one keyboard shortcut, then closes the tabs. You can reopen the session anytime, individually or all at once.

Does Tab Space sync between Mac, iPhone, and iPad?

Yes. Sessions sync via iCloud between Tab Space for Mac and the Tab Space app for iPhone and iPad. No account is required.

Tab Space vs Safari Tab Groups

Safari has built-in Tab Groups, so why would anyone use a tab-saving extension? Because the two solve different problems. Tab Groups keep tabs open; Tab Space lets you save your tabs, close them, and reopen them later.

Two different mental models

Safari Tab Groups are persistent workspaces. Every group stays alive: its tabs remain part of your browser, synced everywhere, always one click away — and always there. If you are the kind of person who keeps a handful of tidy, long-lived groups, they work great.

Tab Space follows the save & close model (the workflow OneTab made popular). When you finish a research spree with 30 tabs open, you press one shortcut: the whole window is stored as a named, taggable session and the tabs are gone. Safari gets fast and quiet again. Next week — or next year — you reopen the session, all tabs or just one.

Many Tab Space users tried Tab Groups first and came back. Not because Tab Groups are bad, but because a pile of one-off browsing sessions doesn't want to live as thirty permanent groups in a sidebar.

Side by side

	Safari Tab Groups	Tab Space
Core model	Tabs stay open in persistent groups	Save a snapshot, close the tabs, reopen anytime
Best for	A few long-lived workspaces	Many one-off sessions: research, shopping, trip planning, reading queues
Capture speed	Move tabs into a group manually	One click / one shortcut saves the whole window (or all windows)
Organization	Group names	Names, tags, favorites, search across titles, URLs and tags
History of past sessions	No — a group is only its current state	Yes — every save is kept, with automatic backups and export (Text, Markdown, HTML, JSON)
Browser weight	All grouped tabs remain part of Safari	Saved sessions live outside Safari; closed tabs cost nothing
Sync	iCloud	iCloud (Mac app + iPhone/iPad app)
Extras	—	Safari shortcuts (close duplicates, close same-domain tabs, copy URL as Markdown…), OneTab import, merge sessions
Price	Free, built into Safari	Paid, one-time purchase on the Mac App Store

When you should just use Tab Groups

You keep a small, stable set of workspaces ("Work", "Personal") and rarely archive anything.
You want tabs to stay live and loaded, not stored away.
You don't need tags, search, exports, or a history of past sessions.

When Tab Space fits better

You regularly end up with dozens of tabs you're not done with, but don't want open.
You think in sessions: "yesterday's bug hunt", "flights to Tokyo", "gift ideas".
You want one shortcut that saves everything and clears the window.
You want your saved tabs searchable, taggable, exportable — and backed up automatically.
You want the same library on your iPhone and iPad.

Also see: Tab Space vs OneTab