Buildkite

vs

Travis CI

Jenkins is a free and open source DevOps tool used for ticket systems and CI/CD infrastructure. Jenkins provides hundreds of plugins to support building, deploying and automating any software project. The tool is a self-contained Java-based program that is ready to run out-of-the-box, with packages for Windows, Mac OS X and Unix-like operating systems. Anyone is free to contribute to Jenkins, and the software is released under the MIT license.

With CircleCI, teams can build and ship appliocations faster. CircleCI provides tools that makes the feedback cyckle shorter, and pipeline maintenance simpler. Whether you need the simplicity of a cloud-hosted solution or the control of hosting on your own private infrastructure, CircleCI all the way from startup to enterprise scale.

With Bitbucket developers and teams can collaborate better on software projects. BitBucket is a web-based version control repository hosting service owned by Atlassian. The software is a suite of tools built on-top of the free and open-source Git repoitory management and version control system. Bitbucket provides features that developers can use to build, test and deploy code with integrated CI/CD.