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 *Web Based collaborative code review system.*
 
 * [Gerrit](https://code.google.com/p/gerrit/) - Based on the Git version control, it facilitates software developers to review modifications to the source code and approve or reject those changes.
+* [Phabricator](http://phabricator.org/) - Code review tool build by facebook and used by WikiMedia, FB, dropbox etc. Comes with an integrated wiki, bug tracker, VC integration and a CLI tool called arcanist.
 * [Review Board](https://www.reviewboard.org/) - Available as free software uner the MIT License.
 
 ## Collaborative Software