It&#x27;s much better suited for open source projects than GitHub, not only due to the powerful issue tracker and other community features.<p>An incomplete list of projects using it, some of them VERY large:<p>- Blender (<a href="https:&#x2F;&#x2F;developer.blender.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;developer.blender.org&#x2F;</a>)<p>- LLVM (<a href="http:&#x2F;&#x2F;reviews.llvm.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;reviews.llvm.org&#x2F;</a>)<p>- Haskell (<a href="https:&#x2F;&#x2F;phabricator.haskell.org" rel="nofollow">https:&#x2F;&#x2F;phabricator.haskell.org</a>)<p>- Wikimedia (after lots of discussion and a lengthy selection process, <a href="https:&#x2F;&#x2F;phabricator.wikimedia.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;phabricator.wikimedia.org&#x2F;</a>)<p>- FreeBSD (<a href="https:&#x2F;&#x2F;reviews.freebsd.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;reviews.freebsd.org&#x2F;</a>)<p>- Fedora (in some places, for example: <a href="https:&#x2F;&#x2F;phab.qadevel.cloud.fedoraproject.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;phab.qadevel.cloud.fedoraproject.org&#x2F;</a>)<p>- Khan Academy (<a href="https:&#x2F;&#x2F;phabricator.khanacademy.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;phabricator.khanacademy.org&#x2F;</a>)<p>- Enlightenment (<a href="https:&#x2F;&#x2F;phab.enlightenment.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;phab.enlightenment.org&#x2F;</a>)<p>- KDE (<a href="https:&#x2F;&#x2F;phabricator.kde.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;phabricator.kde.org&#x2F;</a>)<p>- Freedesktop (<a href="https:&#x2F;&#x2F;phabricator.freedesktop.org" rel="nofollow">https:&#x2F;&#x2F;phabricator.freedesktop.org</a>)<p>- lighttpd (<a href="https:&#x2F;&#x2F;review.lighttpd.net" rel="nofollow">https:&#x2F;&#x2F;review.lighttpd.net</a>)<p>- Kolab (<a href="https:&#x2F;&#x2F;git.kolab.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;git.kolab.org&#x2F;</a>)<p>- ...<p>Wikimedia hat lots of content about their choice and the migration process: <a href="https:&#x2F;&#x2F;www.mediawiki.org&#x2F;wiki&#x2F;Phabricator&#x2F;FAQ" rel="nofollow">https:&#x2F;&#x2F;www.mediawiki.org&#x2F;wiki&#x2F;Phabricator&#x2F;FAQ</a><p>Phabricator has been in use as a production tool for years and it shows. It is much more sophisticated in terms of workflow and real-world use than alternatives.