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Calva is an integrated REPL powered environment for enjoyable and productive Clojure and ClojureScript development in Visual Studio Code. It includes inline code evaluation, Paredit, code formatting, a test runner, syntax highlighting, linting, and more. Calva is open source and free to use.

Getting Started

First thing you need to do is to get Calva connected to the REPL of your project. Then we suggest you check out Something to Try First.

If you are new to Clojure or ClojureScript altogether, please check out the guide material on the respective official sites:

There are also many great books on Clojure. Clojure for the Brave and True can be read for free online, and is a great resource for beginners.

How to Contribute to Calva?

I'm glad you asked! Please see the Calva Development Wiki. (There, in a section labeled The Tao of Calva, we also try to make clear why you would want to contribute.)

Calva Gold Sponsors ♥️


See Sponsors for more information about this.

If your Company benefits from Calva's existence and you see it as an important in the Clojure and ClojureScript ecosystem. please consider sponsoring!

Have Questions and Feedback? Need Help?

Easiest way is to chat with us and other Calva users. Please join the #calva channel on the Clojurians Slack. If you haven't joined that slack workspace, you can get an invite here.

If you're a beginner to Clojure(Script), the #beginners channel of the Clojurians Slack is very active and helpful.

Happy coding!