We have listed 5 alternatives for Buildkite which have similar features like
Buildkite
including commercial, freemium, free and open source Mac OS X
alternatives.
Buildbot is a software development continuous integration tool which automates the compile/test cycle required to validate changes to the project code base.
Jenkins is a self-contained Java-based program, ready to run out-of-the-box, with packages for Windows, Mac OS X and other Unix-like operating systems.