FISHEYE

Atlassian Fisheye is advanced tool developed by Atlassian to visualize and display sophisticated reports on activity, search for commits, files, revisions, teammates, or colleagues across Subversion(SVN), Git, Mercurial, Concurrent Version Systems(CVS) and Perforce.

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Futhermore, it provides data comparison and an display the difference between contents of files, changelog, changesets, direct resource-based URL down to line number level. It also gives ability of monitoring and user-based notifications through emails or really simple syndication(RSS)