WebSVN offers a view onto your subversion repositories that's been designed to reflect the Subversion methodology. You can view the log of any file or directory and see a list of all the files changed, added or deleted in any given revision. You can also view the differences between two versions of a file so as to see exactly what was changed in a particular revision.
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TortoiseSVN - The coolest interface to (Sub)version control
gitg - gitg is a git repository viewer targeting gtk+/GNOME.
RabbitVCS - RabbitVCS is a set of graphical tools written to provide simple and straightforward access to the...
TortoiseGit - TortoiseGit is an easy to use client for the Git distributed revision control system.
SnailSVN - Similar to Tortoise SVN for Windows but integrated into Finder
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.