What is the best continuous integration tool?
As per my experience with CI/CD, my recommendation is that there is no single best CI/CD tool. This is because the choice of your CI tool will depend on your budget and requirements.
Jenkins is the best open-source CI tool that I have used in small scale and large scale projects. However, there are many other CI tools (open-source as well as premium) that are equally good, here is my list of best CI tools:
TeamCity Semaphore CI Bamboo CI TravisCI GitLab CI CircleCI