Why I use it: The original CI server. Infinitely extensible with 1,800+ plugins. Self-hosted and free.
Why I use it: Infrastructure as Code standard. Define cloud resources in HCL and version your infrastructure.
Why I use it: Hybrid CI/CD — hosted dashboard with self-managed agents. Scales beautifully for large engineering orgs.
Why I use it: CI/CD built into GitHub. Free for public repos, huge marketplace of reusable workflows.
Why I use it: Fast CI/CD with Docker-native builds and powerful caching. Great developer experience.
Why I use it: IaC using real programming languages (TypeScript, Python, Go). No new DSL to learn.
Why I use it: Agentless automation for configuration management and deployment. Simple YAML playbooks.
Why I use it: Container platform that standardized app packaging. Essential for reproducible dev and deployment.
Why I use it: One of the original hosted CI services. Simple YAML config. Good for straightforward build/test pipelines.
Why I use it: GitOps continuous delivery for Kubernetes. Declarative deployments synced from Git.