Install from npm, or don't.
Drop a single script tag in your HTML and start writing Ren immediately. Prefer npm? You can find us there too.
Cleaner, clearer JavaScript.
A modern scripting language for themodern Web.
Ren is a functional, immutable-by-default, dynamically typed scripting language. Combining productive functional features such as tagged unions and pattern matching with the freedom of JavaScript, Ren strikes a pragmatic balance between safety and flexibility.
No types? No problem.
Powerful pattern matching gives you the tools to handle dynamic code effortlessly.
First-class tests.
Testing constructs for floating-point tolerance, predicate satisfication, and exception handling are built into Ren. Co-locate definitions and tests, and automatically run them during compilation.