Tree Style Tab is not available for Google Chrome but there are some alternatives with similar functionality. The best Google Chrome alternative is Tabs Outliner, which is free. If that doesn't suit you, our users have ranked more than 10 alternatives to Tree Style Tab and six of them are available for Google Chrome so hopefully you can find a suitable replacement. Other interesting Google Chrome alternatives to Tree Style Tab are Sidewise Tree Style Tabs (Free), Tabsets (Free, Open Source), Tree Style Tab For Chrome (Free) and Mark Tab Manager (Free).
A dockable sidebar for Chrome featuring vertical Tree Style Tabs, Tab Hibernation, and much more. * Tree Style Tabs: organize your tabs in a tree view. Supports ctrl/shift multiselect, drag & drop, instant search, right-click context menu, and more.
Keep it simple! Vertical Tabs Popup is a very simple extension that lets you see the tabs in a vertical manner in a popup window. The window can preferably be place to the side of the main google chrome window.