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. Developed by R.Tyler Croy
License: Open Source
Jenkins is a highly flexible and customizable CI/CD tool with a vast plugin ecosystem, making it suitable for complex projects but can be overwhelming due to its learning curve. In contrast, Concourse is designed with simplicity and speed in mind, focusing on declarative pipelines and built-in support for containers, making it a great choice for modern cloud-native applications.