Continuous deployment (CD) tools automate the process of delivering code to users, eliminating manual release processes and increasing software deployment throughput. This simplifies DevOps processes but also creates new risks that require reliable, easy-to-monitor, and quick-rollback deployments. CD implementations should be backed by robust tooling with speed and flexibility. Continuous deployment is the practice of automatically deploying changes to live environments as soon as they're ready, extending traditional CI/CD pipelines. Features like automated pipelines, reliability, monitoring, and rollbacks are crucial for successful continuous deployment. The key difference between continuous delivery and deployment lies in whether changes are prepared but not deployed or actually deployed directly to production. Continuous deployment requires a mature DevOps pipeline with strong testing, rollback mechanisms, and monitoring to ensure reliability. Various tools like Spacelift, GitLab CI/CD, Argo CD, Buddy, Octopus Deploy, AWS CodeDeploy, Jenkins, Semaphore, Spinnaker, Heroku, Google Cloud Deploy, DeployHQ, GoCD, CircleCI, GitHub Actions, TeamCity, Bamboo, and Travis CI support continuous deployment. These tools offer features like automated deployments, reliability, monitoring, rollbacks, scalability, and flexibility to help organizations implement reliable continuous deployment pipelines.