Common CI/CD Tools
CI/CD combines continuous integration with continuous delivery/deployment, with one goal: shipping software faster and more reliably. This post rounds up several popular CI/CD tools on the market, as a reference for when you need to pick one.
Background
CI/CD is a software development practice that combines two concepts — Continuous Integration and Continuous Delivery/Deployment — to speed up software delivery and deployment while improving quality and stability.
Continuous integration means automatically merging code submitted by developers into the mainline, then running a series of tests and checks to ensure quality and stability. This avoids code conflicts, reduces the complexity of merging, and surfaces problems early so they can be fixed promptly, making the codebase more maintainable and testable.
Continuous delivery/deployment means automatically deploying code that has passed testing and checks into production, enabling fast software delivery. It relies on automated tooling and processes — automated testing, automated builds, automated deployment — to reduce human error and delays, improving both the speed and quality of delivery.
CI/CD helps development teams respond faster to market demands and user feedback, shortens development cycles, cuts costs, and improves team collaboration and the reliability of code management. Implementing CI/CD requires a stack of tools and technologies: version control, automated build tools, automated testing, containerization, cloud computing, and so on. There are many CI/CD tools and platforms on the market today — Jenkins, GitLab CI, Travis CI, CircleCI, and others — offering rich features and plugins with support for many languages and frameworks.
CircleCI
Paid for closed source, free for open source: open-source projects can use it for free. Pricing depends on the number of concurrent build instances you need; a single instance is free.
Continuous Integration and Delivery
Jenkins
Free, and one of the most widely used CI/CD tools, built on Java.
Buddy
Free for 14 days after sign-up. It has a modern UI, a rich feature set, and a gentle learning curve.
Buddy: The DevOps Automation Platform
GitLab
The Community Edition is free. GitLab is not just a repository management tool — it has CI/CD capabilities built in, so you can write pipeline scripts directly to handle compiling, packaging, releasing, and more.
Jenkins X
Built to fit naturally into Kubernetes clusters, it integrates Helm, Draft, GitOps, plus systems and tools like Nexus, chartmuseum, and monocular. This enables automated build environments, container image generation, pipelines, and automated deployment, with promotion between environments driven by a simple review step.
Yunxiao
Alibaba Cloud's one-stop cloud-native development platform, with built-in git repositories, bug tracking, task assignment, pipeline releases, and more. It is highly integrated and connects to all your cloud resources, making it a good fit for enterprises that want fast development and deployment.
阿里云云效-DevOps自动化运维-企业级DevOps平台-项目协作工具-阿里云
Wrapping up
None of these tools is absolutely better than the others — it mostly comes down to matching the tool to your situation. For personal or open-source projects, hosted services that are free for open source, like CircleCI, are a good first choice. If your team already manages code in GitLab, using its built-in GitLab CI is the path of least resistance. Jenkins wins on ecosystem and plugin count, offering the most freedom for self-hosted pipelines; if your infrastructure already runs on Kubernetes, Jenkins X fits the cloud-native workflow better. And for companies in China with their resources on Alibaba Cloud, Yunxiao's one-stop integration is worth a try.
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