Haskell is an advanced purely-functional programming language. An open-source product of more than twenty years of cutting-edge research, it allows rapid development of robust, concise, correct software.

The best open source alternative to Ruby is Python. If that doesn't suit you, our users have ranked more than 50 alternatives to Ruby and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Ruby are JavaScript, Java, PHP and C++.
Haskell is an advanced purely-functional programming language. An open-source product of more than twenty years of cutting-edge research, it allows rapid development of robust, concise, correct software.

Elixir is a dynamic, functional language designed for building scalable and maintainable applications.

Open-source programming language for developing iOS, macOS, watchOS, tvOS, and visionOS apps, featuring safety, speed, type inference, generics, native-code compilation, protocol-oriented design, memory management, Playgrounds, package manager, and Objective-C interoperability.



Asp.net is an open source server-side Web application framework designed for Web development to produce dynamic Web pages, web sites, apps and services with HTML, CSS and JavaScript. You can also create Web APIs, mobile sites, use real-time technologies like Web Sockets and more!

Programming language with Ruby-like syntax that compiles to efficient native code.


Scala is a modern multi-paradigm programming language based on the Java Virtual Machine (JVM) designed to express common programming patterns in a concise, elegant, and type-safe way.

D is a language with C-like syntax and static typing. It pragmatically combines efficiency, control, and modeling power, with safety and programmer productivity.

Racket is a general-purpose programming language as well as the world’s first ecosystem for language-oriented programming.

Functional-first language for .NET with static typing, succinct and expressive code, advanced pattern matching, object-oriented features, interop with .NET languages, async programming, type providers, cross-platform support, tooling, and immutable data.

Clojure is a dynamic programming language that targets the Java Virtual Machine (and the CLR ). It is designed to be a general-purpose language, combining the approachability and interactive development of a scripting language with an efficient and robust infrastructure for...

V is a statically typed compiled programming language designed for building maintainable software.

Groovy is an agile and dynamic language for the Java Virtual Machine (JVM).