CircleCI's continuous integration and delivery platform helps software teams rapidly release code with confidence by automating the build, test, and deploy process. CircleCI offers a modern software development platform that lets teams ramp quickly, scale easily, and build confidently every day.
Jenkins is an award-winning application that monitors executions of repeated jobs, such as building a software project or jobs run by cron.
Easily sync your GitHub projects with Travis CI and you'll be testing your code in minutes. Travis CI for private repositories has plans for every size project. With Travis CI testing your open source project is 100% free.