CircleCI

Today, most software evolves through a process of continuous integration (CI), where developers merge code into a shared software repository ​“early and often.” These changes may be put into production manually (continuous delivery) or auto­mat­i­cally (continuous deployment). CircleCI’s platform automates continuous integration, delivery, and deployment across multiple languages, machine types, and computing envi­ron­ments, giving teams of developers the confidence to build, test, and deploy more quickly.