List of Continuous Integration services

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

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

There is a similar comparison on Wikipedia.

Name	Description	Features	Supported repositories	Documentation	Price
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
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
Badwolf	Docker based continuous integration and code lint review system for BitBucket	Source code is available	BitBucket	Documentation	Free (Open source)
Bitrise	Mobile Continuous Integration and Delivery.	Source code is available	GitHub, BitBucket, Gitlab, Custom	Documentation	Free with limitations
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
Circle CI	Continuous Integration and Deployment		GitHub, Bitbucket	Documentation	Free for 1 container
CDS	Enterprise-Grade Continuous Delivery & DevOps Automation Open Source Platform	Languages: everything	Github, Bitbucket Server, Gitlab	Documentation	Free Open Source
Cirrus CI	Bring-Your-Own-Infrastructure CI with modern cloud technologies, matrix builds and simple-yet-powerful configuration	Flexible execution environment: any Unix or Windows VM, any Docker container, any amount of CPUs, optional SSDs and GPUs	GitHub, BitBucket (planned)	Documentation	Free for Open Source, per-second billing for private projects
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
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)
continuousphp	Continuous Integration and deployment for projects writtn 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
Drone	Continuous Integration service	Source code is available.	GitHub,BitBucket, Google Code, Custom	Documentation	Pricing
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
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
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)
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
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
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
Rocro INSPECODE	Review less, move faster. Speed up your software development with Inspecode’s continuous code inspection and automated code correction.	Languages: Java, JavaScript, C, C++, Python, Ruby, PHP, Go, Scala, TypeScript, Clojure and more...	GitHub, BitBucket	Documentation	Free 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)
Shippable	Continuous Delivery	Languages: Ruby, Python, Java, Node.js, Scala, PHP, Go; Databases: MongoDB, MySQL, Redis, Postgres, CouchDB, RethinkDB, Neo4j, and SQLite	GitHub, BitBucket, GitLab	Documentation	Free with limitations
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
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
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
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	Free for opensource projects
Wercker	Continuous delivery platform		Docker Hub	Documentation

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