What tabs were built for
Tabs reached most people in the early 2000s — Safari, Firefox and Opera had them before Internet Explorer 7 added them in 2006. A busy session then meant five or six pages: a web mail inbox, a search, a couple of articles. Tabs were a brilliant fix for that problem, which was too many windows for a handful of pages.
The problem changed. Work moved into the browser — the mail, the docs, the chat, the tickets, the dashboards — and a working day now means dozens of pages, many of them open all day. The tab bar didn’t change with it.
Three ways tabs break at scale
- Names vanish. A tab bar is one row across the window. Every new tab divides it further, until each is an icon — and five Google Docs have the same icon.
- Order means nothing. Tabs line up in the order you happened to open them, not by what they’re for. The inbox is wherever you left it this morning.
- Only one is on screen. Everything else is a click away and out of sight. Checking three things means three switches, and remembering what each said.
What a canvas does differently
On a canvas, every page has a place — and the place carries meaning, because you chose it. Mail top-left, the doc in the middle, the dashboard on the right. You find things the way you find them on a desk: by where they are, which people are remarkably good at. The research on spatial memory, and what a spatial browser is.
And several pages are on screen at once. Zoom out and you see the whole day; zoom in and one page fills the screen. Nothing is hidden behind anything else unless you put it there.
Where tabs still win
This is an argument for a canvas, so here is the honest other side:
- A few pages. With five tabs open, a tab bar is simple, readable and fast. A canvas is overkill.
- The keyboard. Command-1 to Command-9 jump straight to a tab, and nothing is quicker than that.
- Memory. A hidden tab can sleep. A page you can see is running. Many pages on screen cost more.
- Small screens. On a 13-inch laptop there’s room for two or three readable pages at once, and a canvas shows its best on a bigger display.
The space in between
It isn’t all or nothing. Vertical tabs give every tab a readable name. Tab groups give them meaning. Split view puts two or four on screen. A canvas is the far end: every page visible, placed and live. If your tab count has crept past a dozen, start by sorting them — most aren’t work at all.
Questions
- Is a canvas really faster than tabs?
- For a handful of pages, no — tabs are fine, and keyboard shortcuts make them quick. The difference appears with many pages you move between: finding one by where it is beats finding one by a shrinking icon. Microsoft Research’s Data Mountain study found people retrieved web pages faster by position than from a list of favorites.
- Doesn’t a canvas use more memory?
- Yes, if the pages on it are live. A tab you can’t see can be put to sleep; a tile you can see is running. That’s the honest cost of seeing everything at once.
- Can I have both?
- Tabula has both: a sidebar that lists every open site, for jumping by name, and the canvas behind it, for seeing and arranging them. Vertical tabs, tab groups and split views are other points between a plain tab bar and a canvas.
- Why don’t browsers just show more tabs?
- Because a tab bar is one row across the width of the window. Every new tab divides the same space further, so past a certain count there’s only room for an icon — or nothing. Vertical tabs fix the names by giving each tab its own row.