BeyondCVS is an Eclipe plug-in that enables using Beyond Compare (externally) for comparing files and folders. It also allows comparing a single file to a previous revision in CVS/SVN or Local History. There is also support for opening Putty and WinSCP.
Support for Bazaar VCS (http://bazaar-vcs.org) in Eclipse. For more information visit: http://bazaar-vcs.org/BzrEclipse
This project develops an integration of the distributed revision control system Darcs (http://darcs.net) into the Eclipse IDE (http://eclipse.org). It provides a set of plugins that enable IDE users to manage the code under development in Darcs repositor
HgKit aims to be a java library for managing mercurial (hg) repositories.
SF Information Currency Market is free software for operating a production econosystem focused on free and open source information repositories.
SvnAdmin is a Subversion administration tool for Eclipse. It is provided as an Eclipse plug-in, and it supports remote user and repository management.
Fossil Eclipse integration
A full featured easy-to-use Git source code management plug-in for Eclipse.