Supported Languages Guide
Code that builds on Linux or iOS will generally build on CircleCI. We’ve created several demo applications in various languages, so you can learn by example from an app written in the same language as your application. Each language listed below has an associated guide and public repository on GitHub. Fork them and follow along!
Language Guide | Framework | GitHub Repo Name |
---|---|---|
Python | Flask | sample-python-cfd |
JavaScript | Vue.js | sample-javascript-cfd |
Mono repo - Python backend and Node.js frontend | Flask, Vue.js | sample-monorepo-cfd |
Supported languages
- Clojure (v1.2.0 and later)
- Elixir (v1.2 and later)
- Go (v1.7 and later)
- Java (Java 8 and later)
- JavaScript (Node.js 4 and later)
- PHP (PHP 5 and later)
- Python (Python 2 and later)
- React Native
- Ruby on Rails (Ruby 2 and later)
- Scala and sbt
Build projects in C, C#, C++, Clojure, Elixir, Erlang, Go, Groovy, Haskell, Haxe, Java, JavaScript, Node.js, Perl, PHP, Python, Ruby, Rust, Scala and many more.
See also
Refer to the Getting Started Introduction for the steps to run your first build.
Help make this document better
This guide, as well as the rest of our docs, are open source and available on GitHub. We welcome your contributions.
- Suggest an edit to this page (please read the contributing guide first).
- To report a problem in the documentation, or to submit feedback and comments, please open an issue on GitHub.
- CircleCI is always seeking ways to improve your experience with our platform. If you would like to share feedback, please join our research community.
Need support?
Our support engineers are available to help with service issues, billing, or account related questions, and can help troubleshoot build configurations. Contact our support engineers by opening a ticket.
You can also visit our support site to find support articles, community forums, and training resources.

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