CircleCI

CircleCI is a continuous integration and continuous delivery (CI/CD) platform that automates building, testing, and deploying software. It offers cloud-hosted and self-managed runners, container and Docker-native workflows, and integrations with major VCS providers and developer tools to accelerate delivery. Teams use CircleCI for faster feedback through caching, parallelism, and customizable pipelines, plus visibility into build performance and test reliability. Enterprise offerings include security controls, compliance features, and scalability for large engineering organizations.