List of Continuous Integration services

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Introduction

There are a lot of cloud continuous integration services. All of them have a different set of functionalities, some of them require payment, some of them are for free. I have created a list of such services to make an easy comparison of them and choose a more suitable one for you.

Some of the CI services have open source code thus you can set them up in standalone mode. Pay attention to the column "Features".

There is a similar comparison on Wikipedia.

Name	Description	Features	Supported repositories	Documentation	Price	Stars
Abstruse CI	Self-Hosted, Open-Source CI Platform. Based on NodeJS and Docker.	Languages: everything that can be installed on Linux	GitHub, GitLab, BitBucket, Gogs	Documentation	Open Source
Agola	Self-Hosted, Open Source CI/CD Platform	Languages: everything	GitHub, GitLab, Gitea	Documentation	Open Source
Appcircle.io	Automated mobile CI/CD/CT for iOS and Android with online device emulators.	Support for iOS (Obj-C/Swift), Android (Java/Kotlin), React Native, Flutter and Smartface	GitHub, Bitbucket, GitLab, Custom	Documentation	Free with limitations
App Center	CI Platform. It connects with Hockeyapp where you can store installers and send their by email	Compatible with Android, iOS, Xamarin, React Native, Unity, Cordova, macOS, tvOS	GitHub, BitBucket, VSTS	Documentation	Free with limitations
Appveyor	AppVeyor automates building, testing and deployment of .NET applications.	Languages: C#, Xamarin, F#, VB.NET, C/C++, Node.js, Ruby, TypeScript, Go, Java, Python, Perl, Erlang	GitHub, BitBucket	Documentation	Free with limitations
Assertible	Automated post-deployment testing and web service monitoring	Example Integrations	GitHub	Documentation	Free with limitations
AWS CodeBuild	Fully managed continuous integration service in AWS	Docker	AWS S3, AWS CodeCommit, Github, Bitbucket	Documentation	First 100 minutes per month for free, pay-as-you-go later
Azure DevOps (formerly Visual Studio Team Services)	Cloud-based collaboration services for version control, agile planning, continuous delivery, and analytics application for Visual Studio, Eclipse, Xcode.		Azure DevOps, GitHub, Custom	Documentation	Free with monthly build limits
Bamboo	Bamboo is a continuous integration and continuous deployment server		Bitbucket (for Bitbucket Cloud), Stash (for Bitbucket Server), Git, GitHub (for GitHub and GitHub Enterprise), Mercurial, Subversion, CVS, Perforce, Custom via plugins	Documentation	Full Atlassian stack for 10 users: 10$/year ( 100% of payments to charity)
Betterscan	Code Scanning/SAST/Static Analysis/Linting using many tools/Scanners with One Report (Code, IaC) - Betterscan Community Edition (CE)	Docker	Git	Documentation	Non-free Community Edition and Paid PRO version
BitBucket Pipelines	Bitbucket Pipelines & Deployments	Documentation	BitBucket	-	Free with limitations
Bitrise	Mobile Continuous Integration and Delivery.	Source code is available	GitHub, BitBucket, Gitlab, Custom	Documentation	Free with limitations
Buddy	Continuous Integration and Deployment	Languages: .NET/C#, C/C++, Clojure, Elixir, Go, Haskell, Java, Javascript, Node.JS, PHP, Python, React Native, Ruby, Scala	GitHub, Bitbucket, Gitlab, Custom	Documentation	Free with limitations
builds.sr.ht	Continuous Integration services for sourcehut, the hacker's forge	open-source; supports many Linux distros, BSDs and even Plan9; runs anonymous jobs that aren't tied to a repository; post-build triggers for email, webhooks, etc.; powerful API for complex build scenarios; git and mercurial support; SSH login after build failures	any supported by dispatch.sr.ht (GitHub, GitLab etc.), git.sr.ht, hg.sr.ht	Documentation	Free and donation based ($2-$10/month) plans
Buildkite	A build automation platform which gives you complete control, without the pain of running your own CI system.	Languages: Ruby, Python, Node.js, JavaScript, PHP, Go, Rust, Erlang, Elixir, Java, Clojure, Scala, C/C++, Objective-C, Swift, .NET/C# Source code is available: Buildkite Agent	GitHub, Bitbucket, GitLab, Custom	Documentation	14-day Trial, Free for Education, Open Source
Chrono CI	Continuous Integration Security	Languages: Ruby on Rails, Python, Node.js, Solidity C, Java, Go	GitHub	Documentation	Free for 100 tests per month
CICube	Optimize your GitHub Actions with Insightful Analysis	Cost optimization, Anomaly detection, AI powered CI Insights, GitHub Actions Dashboard	GitHub	-	14-day Trial
Circle CI	Continuous Integration and Deployment	Accessing jobs via ssh, Virtualization: docker/native, OS: linux/macos/windows, ISA:several gpus/arm	GitHub, Bitbucket	Documentation	Free for 1 container on Linux, Windows, and Arm
Cirrus CI	Bring-Your-Own-Infrastructure CI with modern cloud technologies, matrix builds and simple-yet-powerful configuration	Virtualization: docker/native, OS: linux/macos/windows/freebsd, ISA:several gpus/arm	GitHub, Gitlab(community cirrus-run)	Documentation	Free for Open Source, per-second billing for private projects
CDS	Enterprise-Grade Continuous Delivery & DevOps Automation Open Source Platform	Languages: everything	Github, Bitbucket Server, Gitlab	Documentation	Free Open Source
Codacy	Automated code reviews & code analytics	Languages: Scala, Java, JavaScript, Python, Ruby, PHP, Apex, JSP, XML, Velocity, VisualForce, C#, JSON, Kotlin, Markdown	GitHub, BitBucket	Documentation	Free for open-source projects
Code Climate	Hosted platform to continuously measure and monitor code quality	Languages: Ruby, Javascript, PHP	GitHub, Custom	Documentation	14-day Trial
CodeFresh	Codefresh is a Docker-native CI/CD platform. Instantly build, test and deploy Docker images to Kubernetes	Languages: Ruby, Python, Node.js, JavaScript, PHP, Go, Rust, Java, etc	GitHub, BitBucket, GitLab, Webhooks	Documentation	Pricing
Codemagic	Dedicated CI/CD for Flutter mobile, web and desktop projects.		GitHub, BitBucket, GitLab, Custom	Documentation	500 build minutes for free each month Pricing
Codeship	One more cloud based CI service: running tests and deployment	Languages: Dart, Elixir, Go, Java and JVM based languages, PHP, Python, Node.JS, Ruby	GitHub, BitBucket	Documentation Free ebook	Free for opensource projects or 100 builds per month
Concourse CI	Self-hosted CI solution written in Golang		GitHub, generic oAuth	Documentation	Free (Open source)
Continuous	Fully managed GitHub Actions and GitLab CI/CD runners hosted in Europe		GitHub, GitLab	None	pricing
continuousphp	Continuous Integration and deployment for projects written in PHP	Languages: PHP	GitHub, BitBucket, GitLab	Documentation	Free for Open source and educational projects
Coveralls	Coveralls works with your continuous integration server to give you test coverage history and statistics.	Languages: Ruby, Javascript, Python, PHP, C, Objective-C, Scala, GO	GitHub, BitBucket	Documentation	Free for opensource projects
Coverity	Code analysis, test analysis	Languages: C/C++, Java, C#		None	Free for opensource projects
Dagger	Application Delivery as Code that Runs Anywhere		GitHub, GitLab, Gitea	Documentation	Open Source
Drone	Continuous Integration service	Source code is available. (Community edition is licensed under Apache 2.0)	GitHub, GitLab, Gitea, BitBucket, Google Code, Custom	Documentation	Pricing (enterprise) - free self hosting - Open Source
Ebert	Ebert does continuous static analysis of your GitHub repositories and delivers it straight to your Pull Requests, helping your team to focus on what's important and deliver better software.	Languages: Apex, C, Clojure, CoffeeScript, CSS, Elixir, Go, Haskell, Haxe, JavaScript, Markdown, PHP, Python, Ruby, SCSS, Shell, Swift, Vim script.	GitHub	Documentation	100% free for public repositories on GitHub
Evergreen	Evergreen is a distributed continuous integration system built by MongoDB. It dynamically allocates hosts to run tasks in parallel across many machines.		GitHub	Documentation
flow.ci	Self-Hosted, powerful and user-friendly CI/CD server	All Languages, Docker & K8s, High Availability, Parallel Build, Statistic	GitHub, GitLab, Gitee, Gogs	Documentation	Open Source
GoCD	Open source, on-premises continuous delivery tool.		Git, Perforce, Mercurial,Subversion, TFS, Custom	Documentation	Open Source
GitLab	GitLab is a single application for the entire DevOps lifecycle	Languages: everything that can be installed on Linux. Compatible with Linux, Windows, Android and iOS	GitLab, GitHub, Bitbucket	Documentation	Open Source plus Free with limitations hosted version
GitGud	Free & Reliable Git hosting site powered by GitLab	Everything that GitLab does but for free	GitLab, Bitbucket, GitHub, Gitea, Clone by URL	Documentation	Completely Free
GitHub Actions	Automate your workflow from idea to production	Workflows run in Linux, macOS, Windows, and containers on GitHub-hosted servers	GitHub	Documentation	Free for Open Source and free with limits for private repositories
Hound CI	Hound integrates with your existing workflow by reviewing and commenting on code.	Languages: Bash, Elixir, Go, HAML, JavaScript, CoffeeScript, TypeScript, Markdown, PHP, Python, Ruby, Sass/SCSS, Swift	GitHub		Public repositories for free
Hydra	Nix-based continuous build system			Documentation	Opensource (GNU GPLv3)
Jaypore CI	Simple, flexible, powerful; Like the city of Jaypore.	Offline first, configured in python, any language that runs in Docker	Gitea	Documentation	Open Source
Jenkins	With thousands of plugins to choose from, Jenkins can help teams to automate any task that would otherwise put a time-consuming strain on your software team.	Languages: Embedded, PHP, Python, Ruby, Java, Android, C/C++.	Any VCS that supports git, mercurial, cvs, subversion	Documentation	Open Source
Kraken CI	Self-hosted, open source, highly scalable, focused on testing.	workflows with Starlark/Python, executors: bare metal, Docker, LXD, VM, highly scalable to thousands of executors, sophisticated test results analysis	Git, GitHub	Documentation	Open Source
Laminar CI	Fast and lightweight Continuous Integration	Languages: any		Documentation	GPL-3.0 license
minci	minimal self-hosted CI	Languages: any
mvoCI	Self-Hosted, Open Source CI	CI Building, Release Upload to Gitea, REST-API	Gitlab, Bitbucket, Gitbucket, Gitea, Gogs, Forgejo, Github	Documentation	Open Source
Peakflow	CI builds, error reporting and uptime monitoring	Languages: Ruby, PHP, Javascript and anything you can set up yourself.	Github	Documentation	Free for private projects
Pipelight	Tiny rust cli to run automation pipelines.	Typescript, Toml and Yaml	Git	Documentation	Free & Open Source
Previs	Use Travis configuration to run stuff locally in a clean environment.	Everything that Travis support or almost	Your computer, it's running locally!	Documentation	It's free! Since you are hosting everything locally on your computer!
Probo.CI	Continuous Collaboration - break down the barriers between software developers and the other stakeholders involved in a software development project	Underlying engine is OSS, offers several Ubuntu base images, asset pre-upload helps build speed.	GitHub, BitBucket	Documentation	2 month free trial then starts at $30. Pricing
RazorOps	RazorOps is a Container-Native CI/CD platform. Instantly build, test and deploy Docker images to Kubernetes	Languages: Docker, Ruby, Python, Node.js, JavaScript, PHP, Go, Rust, Java, etc	GitHub, BitBucket, GitLab, Webhooks	Documentation	Pricing - Free for Open Source, Free plan with limitations
Saucelabs	Automated testing in the cloud for CI			Documentation	14-day Trial
Scrutinizer	Build quality software, better	Sources are available	GitHub, BitBucket	Documentation	14-day Trial
Semaphore	Hosted continuous integration and delivery solution for open source and private projects.	Ruby, Node.js, JavaScript, Go, Clojure, Elixir, Erlang, Java, PHP, Scala, C/C++	GitHub, BitBucket	Documentation	Free for Open Source, pay only for what you use, first $20 every month on Semaphore (up to 1,300 service minutes)
Sider	Increase code review efficiency and deliver products with confidence. Sider helps development teams accomplish more, allowing them to deliver more value to their customers.	Supported Analysis Tools	GitHub	Documentation	Free 14-day trial for private repositories, and forever free for open source
SonarQube	"Thousands of automated Static Code Analysis rules, protecting your app on multiple fronts"	29 Languages: Java, Kotlin, C#, VB.NET, C, C++, JavaScript, TypeScript, php, Python, Terraform, CloudFormation, ABAP, Apex, COBOL, CSS, Flex, Go, HTML, Objective-C, PL/I, PL/SQL, RPG, Ruby, Scala, Swift, T-SQL, VB6, XML	GitHub, Azure DevOps, Bitbucket, GitLab, Docker Support, Your IDE	Documentation	Free - with upgrade options
StyleCI	The Web Coding Style Service, used by Cachet and Laravel.	Languages: PHP, JavaScript, TypeScript, Flow, CSS, SCSS, Less, Vue.js, Python	GitHub, BitBucket, GitLab	Documentation	Free for opensource projects
SurplusCI	Affordable dedicated runners for your CI pipeline builds, usable with your current CI platform.	Languages: PHP, JavaScript, TypeScript, Flow, CSS, SCSS, Less, Vue.js, Python	GitHub, GitLab	Documentation	Free trial runner & runners start at $12/month
TeamCity	A Java-based build management and continuous integration server from JetBrains.	Support wide variety of web browsers and build tools	Git, Subversion, Perforce, Team Foundation Server, Mercurial, CVS, SourceGear Vault 6 and 7, Borland StarTeam 6 and up, IBM Rational ClearCase, Base and UCM modes, Microsoft Visual SourceSafe 6 and 2005	Documentation	Free with limitations
Tekton	Cloud-native solution for building CI/CD pipelines	It consists of Tekton Pipelines, which provides the building blocks (as Kubernetes Custom Resources you can use to create your pipelines), and of supporting components, such as Tekton CLI and Tekton Catalog, that make Tekton a complete ecosystem	GitHub, Gitlab, Bitbucket... See triggers-examples, but extensible/customizable to support others	Documentation	Open Source, Apache 2.0
Travis CI	Hosted continuous integration service for open source and private projects.	Languages: C, C++, Clojure, D, Erlang, Go, Groovy, Haskell, Java, Javascript (with Node.js), Objective-C, Perl, PHP, Python, Ruby, Rust, Scala. Source code is available.	GitHub	Documentation	Pricing
Thundra Foresight	A visibility tool into CI pipelines by spotting test failures in no time.	Languages: Java	GitHub, TeamCity, Bitbucket, Gitlab, Jenkins, CircleCI, TravisCI	Documentation	Free
Vela	Vela is a Pipeline Automation (CI/CD) framework built on Linux container technology written in Golang.	Docker based	GitHub	Documentation	Open source, Apache 2.0
Wercker	Continuous delivery platform		Docker Hub	Documentation
Woodpecker	Continuous Integration service	Woodpecker is a community fork of the Drone CI system.	GitHub, GitLab, Gitea, BitBucket, Custom	Documentation	Free Open Source (Apache License 2.0)
Zuul	A Project Gating System	Self-Hosted, Open Source CI/CD Platform, Gating	GitHub, Gerrit, Pagure	Documentation	Open Source

License

To the extent possible under law, Sergey Bronnikov has waived all copyright and related or neighboring rights to this work.