Switch layouts instantly.
Choose View → Tab Layout → Vertical Tabs, or press Command or Control Alt V. The page you are reading stays exactly where it is — nothing reloads.
A tab rail when you want one. The island either way.
Move your tabs to a resizable left rail for a persistent overview — without reloading the page or adding a second browser interface.
One switch. No reload. No second address bar.
A rail that fits your session.
Every open tab becomes a row with its title, so a wide session stays readable instead of shrinking into dots. Drag the rail's edge to the width you want; Blanc remembers it on this device.
Drag tabs into the order you want.
Drag a tab or a group header in the rail to reorder it, move a tab between groups, or move a whole group. On a focused row, Option+Shift+Up or Down on a Mac, or Alt+Shift+Up or Down on Windows and Linux, does the same from the keyboard. The expanded Island uses the same moves.
Still one island.
The rail is an overview, not a second interface. Searching, navigating, and commands stay on the island, so nothing you have learned about Blanc changes.