The Plasma programming language strikes a balance between functional and imperative programming, making it easier to write reliable and efficient software. Plasma is under development and is not usable yet.

Its planned features include:

  • side-effect free semantics,
  • a strong, static and expressive type system,
  • direct support for loops, arrays and streams,
  • a foreign function interface (FFI) for integration with C,
  • concurrency support with N:M threading,
  • manual and automatic parallelisation
  • MIT License


func fib(n : Int) -> Int {
   if (n < 2) {
      f = 1
   } else {
      f = fib(n-1) + fib(n-2)
   return f

For more information see our About page, and for detailed information about syntax and semantics take a look at the Plasma Language Reference and the rest of the documentation.

Latest News

— Resources and resources in higher-order code

A couple of months ago we added support for resources in higher order code, and before that we added resources. This late news item will cover both new features.

— Two and a Half Years

It’s been two and a half years since I started work on Plasma. With the end of 2017 I noticed that many other language projects were publishing retrospectives of their last year. Well with one developer progress is a lot slower, so rather than summarise the last year, I’ll write about the whole history!

— Higher order values

Another item ticked off the roadmap! Higher order values and higher order calls. That’s two items!

— Multi-value functions

Woo, another goal ticked off on the roadmap. Plasma now supports functions that return any number of results.

— Parametric Polymorphism

It’s been some time but we’ve finally ticked off another goal on the roadmap. The basics of parametric polymorphism work. You can define a type, such as List(a), not that a syntax sugar for list cells and lists does not exist yet:

See all news.

How can I help?

The project is in its very early stages, so there is both plenty of work to do yet that work is pretty specific. Check our file for information and suggestions. Plasma's source code is hosted on github.

Feel free to follow along on via Mailing lists, IRC or Social Media.