Phabricator - Phacility - Phabricator
SEO Analyzer By Neil Patel - A free SEO analyzer for your site
Gerrit Code Review - OpenSource Git Code Review Tool
Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.
Serpstat Website SEO Checker - Check your website's SEO, analyze competitors and keywords