Continuous Integration and Continuous Delivery, often known as CI/CD, have become an essential aspect of software development and the DevOps lifecycle. Open source CI/CD tools are developed to assist users in automating the procedures between a developer checking in code and releasing that code into production.

With CI/CD approach, developers are able to discover defects or bottlenecks in their early stages to avoid integration and deployment issues caused by frequent source code commits. Such CI/CD tasks can be seamlessly implemented using suitable CI/CD tools or frameworks.

There is a wide range of CI/CD tools on the market with attractive features and functionalities, allowing developers to implement CI/CD workflows by writing simple code or using interactive UI. In this article, you will learn about CI/CD workflow, the benefits of CI/CD, and the best open source CI CD tools. 

Best Open Source CI/CD tools

You can select the best CI/CD tool for your business from the following:

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1. Open Source CI/CD Tools: Jenkins

Open Source CI/CD Tools: Jenkins Logo
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Jenkins is an open-source and Java-based tool that mainly allows users to implement continuous integration operations. It’s one of the best Continuous Integration solutions for real-time testing and reporting on isolated changes in a larger codebase. Jenkins is used to create and test your software projects, making it easier for developers to frequently integrate changes and for users to obtain a new build. It also assists developers in swiftly locating and resolving errors in their codebase, as well as automating build testing.

With Jenkins, companies can automate and speed up the software development process. In addition, Jenkins integrates various types of development lifecycle operations, such as build, document, package, test, stage, static analysis, deploy, and much more. Jenkins also offers end-to-end support for scaling out a large number of nodes and distributing the workload evenly among them.

Jenkins is highly compatible with operating systems such as Windows, macOS, and Linux. Since Jenkins is open-source and is available for free, you can download it from the official website

2. Open Source CI/CD Tools: Gradle

Open Source CI/CD Tools: Gradle Logo
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Gradle is an open-source CI/CD tool that allows developers to implement build management and automation tasks. It supports Maven and Ivy repositories for fetching dependencies so that you may reuse artifacts of existing build systems. Gradle was mainly designed to integrate the finest features of popular tools such as Ant and Maven but with a Groovy-based Domain Specific Language (DSL) rather than writing XML codes for declaring project setup.

Gradle supports incremental builds, build caching, and parallel execution and is compatible with a wide range of languages and platforms, including Java, Scala, Android, and C/C++. Gradle can also be integrated with various IDEs, including Eclipse, IntelliJ, and Jenkins. Because of such flexible features and functionalities, Gradle is being used by most popular companies like Google, Netflix, and LinkedIn.

Gradle is highly compatible with operating systems like Windows, Linux, and macOS. Since it is an open-source tool, you can freely download Gradle from the official website. However, if you need enterprise support or training, you can use its enterprise version, which is a subscription-based product.

Check out our review of the top free Open-Source ETL Tools in 2024. 

3. Open Source CI/CD Tools: GitLab

Open Source CI/CD Tools: GitLab Logp
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GitLab is an open-source CI/CD tool for managing several areas of the software development lifecycle. The core product is a web-based Git repository manager that includes features like issue tracking, analytics, and a Wiki. With each commit or push, GitLab allows developers to trigger builds, run tests, and deploy code. GitLab enables developers to create, develop, and manage code and project data from a single distributed version control system, allowing for quick iteration and delivery of business value.

GitLab CI/CD stands out among the best open-source CI/CD tools for its seamless integration with GitLab repositories, providing a unified platform for version control and continuous integration.

Git and GitLab appear to be alike, which leads to common confusion. GIT is not a CI/CD tool, but rather only a version control system (VCS).

To use GitLab CI/CD, developers have to host the codebase in a Git repository and provide the scripts for building, testing, and deploying in a YAML file named “.gitlab-ci.yml” in the root directory. The scripts are organized into jobs, and the groupings are referred to as a pipeline, which is further recognized by the GitLab runner tool for executing the scripts.

GitLab is highly compatible with operating systems such as Windows, macOS, and Linux. Since GitLab is open-source and is available for free, you can download it from the official website. However, it also has paid versions such as “Premium” and “Ultimate” that provide additional features such as priority support and live upgrade assistance.

4. Open Source CI/CD Tools: CodeShip

Open Source CI/CD Tools: Codeship Logo
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Codeship is a cloud-based CI/CD platform that enables developers to achieve early and automatic software releases with high speed and accuracy. It also enables businesses to build dependable products more quickly by improving testing and release processes. 

With CodeShip, developers have complete control over the design of CI/CD systems by implementing testing, building, and deployment tasks directly from GitHub projects. When a developer implements push tasks in the GitHub repository, it runs automated tests and configures deployment. Developers can also customize the environment and workflow to their specific needs using CodeShip. Furthermore, CodeShip supports a wide range of integration options, including security scanning tools, on-premise SCMs, deployment tools, and alerting tools.

CodeShip is compatible with operating systems like Windows, macOS, and Linux. It is available as an open-source and free project on GitHub. However, it also has a paid version with additional features and support.

5. Open Source CI/CD Tools: Buddy

Open Source CI/CD Tools: Buddy Logo
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Buddy is a CI/CD tool that streamlines automation and delivery through a simple and intuitive user interface. It builds, tests, and deploys applications using delivery pipelines composed of over 100 ready-to-use activities that may be assembled in any fashion. Buddy can also build, test, and deploy websites and applications with code from GitHub, Bitbucket, and GitLab. With the fully interactive UI of Buddy, users can drag and drop activities to design delivery pipelines like a DevOps professional.

Being available as on-premise and public cloud variants, the features of Buddy includes Docker layer caching, concurrent pipelines & steps, parallel building & testing, repository & artifacts caching, and vCPU & RAM scaling. In addition, Buddy uses Docker containers, fully integrated languages and frameworks, and ready-to-use actions for fast deployment, allowing you to implement the best DevOps practices in the most straightforward way possible.

Buddy is available for free with 120 pipeline runs per month. However, Buddy also has paid versions based on the cloud and on-premise requirements. The Cloud plans begin at $75 per month, while on-premise plans begin at $175 per month for up to 5 users. 

6. Open Source CI/CD Tools: GoCD

Open Source CI/CD Tools: GoCD
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GoCD is an open-source continuous delivery tool that assists developers in developing and releasing software that supports current and advanced infrastructure. Its main differentiation from other CI/CD DevOps solutions is the Value Stream Map (VSM) functionality. VSM provides a comprehensive end-to-end view of pipelines and successfully maps it to the concepts of ‘Deployment Pipeline’ and ‘Continuous Delivery Pipeline.’

Unlike other CI/CD tools that only support YAML for pipeline description, GoCD allows you to construct ‘pipeline as code’ in both YAML and JSON formats. In addition, GoCD offers extensible plugin design that allows developers to integrate their software with a wide range of popular third-party tools and services. 

GoCD is highly compatible with operating systems like Windows, Linux, and macOS. Since it is an open-source tool, you can download the free version from the official website of GoCD.

Click here to find out the Best Open-Source Data Replication Tools.

7. Open Source CI/CD Tools: Spinnaker

Open Source CI/CD Tools: Spinnaker
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Spinnaker is a free, open-source, multi-cloud continuous delivery platform that simplifies the software delivery process. It provides automated releases, multi-cloud support, deployment best practices, role-based access control, notifications, and third-party integrations. Spinnaker can be challenging to use due to its complex installation and configuration processes, and its user interface may not be suitable for novice users. Moreover, securing Spinnaker can be time-consuming and challenging.

8. Open Source CI/CD Tools: CircleCI

Open source CI/CD Tools: Circle CI
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CircleCI is a fast and flexible CI/CD platform that is popular for its agility and adaptability. It offers a variety of features such as third-party integrations, debugging tools, and flexible execution environments. However, it has some limitations such as pricing complexity and occasional downtime. The platform offers a free plan for open-source projects, while advanced features are available in paid plans starting at $15 per month.

9. Open Source CI/CD Tools: Travis CI

Open source CI/CD Tools: Travis CI
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Travis CI is a popular service that simplifies the software development, testing, and deployment process for developers. It connects to code repositories and automates tests and inspections whenever code changes occur. Travis CI offers a range of customization options, supporting different platforms, programming languages, and frameworks. This user-friendly tool has a large and active community of developers who provide guidance and best practices, making it an essential component for software development teams.

10. Open Source CI/CD Tools: TeamCity

TeamCity simplifies the process of software creation, testing, and deployment by providing automation, scalability, and collaboration features. It supports multiple programming languages and integrates seamlessly with version control systems. Developed by JetBrains, it offers code quality analysis, test automation, team management, user permissions, and notifications. It is a comprehensive solution for modern software development practices..

11. Open Source CI/CD Tools: Bamboo

Bamboo is an open-source tool created by Atlassian that streamlines the software application build, testing, and deployment processes. It offers a customizable workflow engine and integrates with popular development tools and services. Bamboo is scalable and adaptable to various development environments, whether deployed on-premises or in the cloud. It automates builds, testing, and deployment with tools like AWS, Docker, and Kubernetes, making software development efficient and reliable.

12. Open Source CI/CD Tools: Semaphore

Semaphore is a popular and easy-to-use CI/CD tool that automates the process of building, testing, and deploying code changes. It supports various deployment platforms, build tools and test frameworks. Semaphore offers advanced features but may not be suitable for larger or complex projects. Users can choose from multiple installation options.

Key Considerations for Selecting Open Source CI/CD Software

When selecting open-source CI/CD software, it’s important to consider several factors to make an informed decision. Here are some key things to look for:

  1. Check how easy configuring and setting up the software is. Prioritize solutions with user-friendly interfaces, provide scalability and also include robust security features.
  2. Ensure the software is compatible with multiple frameworks and programming languages. It should be able to integrate seamlessly with your preferred version control systems and other essential tools.
  3. Verify that the CI/CD tool provides the scalability to accommodate your growing needs and evolving projects.
  4. Assess the size and engagement of the software’s community. A robust community provides valuable support, resources, and a diverse range of plugins for enhanced extensibility..
  5. Consider any additional features essential for your development team’s workflows and requirements. Ensure that the chosen solution aligns with your specific needs.

Conclusion

In this article, you learned about CI/CD workflow, the benefits of CI/CD, and the best open source CI/CD tools. This mainly focused on explaining only about 12 CI/CD tools. However, there are many other open-source CI/CD tools with attractive features and functionalities. You can explore and learn about other CI/CD tools to get hands-on with continuous integration and continuous delivery operations.  

You can also check out our guide for the Best Open-Source Data Profiling Tools For 2024.

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CI/CD Workflows can be of great help tool for managing your business data. However, at times, you need to transfer this data from multiple sources to your Data Warehouse for further analysis. Building an in-house solution for this process could be an expensive and time-consuming task Hevo Data, on the other hand, offers a No-code Data Pipeline that can automate your data transfer process, hence allowing you to focus on other aspects of your business like Analytics, Customer Management, etc. This platform allows you to transfer data from 150+ data sources to Cloud-based Data Warehouses like Google BigQuery, Amazon Redshift, etc. It will provide you with a hassle-free experience and make your work life much easier.

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Share your views on connecting Open Source CI/CD tools in the comments section!

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Freelance Technical Content Writer, Hevo Data

Ishwarya has experience working with B2B SaaS companies in the data industry and her passion for data science drives her to product informative content to aid individuals in comprehending the intricacies of data integration and analysis.

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