Mercurial SCM - Mercurial is a free, distributed source control management tool.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Sturdy - Simple & efficient code collaboration.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Apache Subversion - Mirror of Apache Subversion. Contribute to apache/subversion development by creating an account on GitHub.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.