
OneTab
Workona
Session Buddy
Toby
tabExtend
Tabs Outliner
Side Space
Momentum
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
OneTab
kdiff3Workona - A better way to work in the browser.
Beyond Compare - Beyond Compare allows you to compare files and folders.
Session Buddy - Manage Your Browser Sessions
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Toby - Better Than Bookmarks
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.