Learn more at: en.wikipedia.org/wiki/Continuous_integration
en.wikipedia.org/wiki/Continuous_delivery
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Jenkins: An open-source automation server used for building, testing, and deploying code in various environments.

GitHub Actions: A feature integrated into GitHub repositories that automates workflows and CI/CD processes directly within GitHub.

GitLab CI/CD: A continuous integration and deployment platform built into GitLab that offers seamless pipelines, runners, and deployment options.

CircleCI: A cloud-based or on-premises CI/CD platform known for its flexibility and fast execution times.

Travis CI: A cloud-focused CI service primarily for open-source projects that integrates closely with GitHub.

Azure DevOps Pipelines: A Microsoft service supporting CI/CD workflows for Azure cloud and other cloud platforms.

Bitbucket Pipelines: A CI/CD system embedded within Bitbucket that allows for continuous integration workflows.

Bamboo: An Atlassian product that integrates well with Jira and Bitbucket for automating build, test, and deployment pipelines.

TeamCity: A robust build management and CI server from JetBrains that offers comprehensive pipeline features and integrations.

Codeship: A straightforward cloud-focused CI/CD platform designed for fast setup and deployment.

Semaphore: A cloud-native CI/CD tool optimized for rapid deployments, especially in Git-based workflows.

Buddy: A visual pipeline tool that emphasizes simplicity and speed for continuous delivery automation.

Spinnaker: An open-source, multi-cloud continuous delivery platform originally developed by Netflix.

Drone: A container-native CI/CD system that uses Docker and other container solutions to streamline automation.

Argo CD: A Kubernetes-native continuous delivery tool focused on GitOps workflows for consistent deployments.

Flux: A GitOps operator that works within Kubernetes to automate sync and deployment of cluster states from Git repositories.

Jenkins X: A version of Jenkins optimized for Kubernetes and cloud-native applications, supporting GitOps principles.

Codefresh: A Kubernetes-focused CI/CD platform that provides microservices optimization and easy automation pipelines.

Buildkite: A scalable CI/CD platform that can be used on-premises or in the cloud, perfect for large-scale projects.

GoCD: An open-source continuous delivery server with advanced workflow modeling and dependency management features.