Open Source Racket Alternatives

JavaScript is a scripting or programming language that conforms to the ECMAScript specification. The language is mainly used to create complex features for web pages, but is also used other software project. Javascript has curly-bracket syntax, dynamic typing, prototype-based object-orientation, and first-class functions and is mostly just-in-time compiled.

Haskell is a free and open-source purely-functional programming language. The language has been around since the 1990's and has pioneered a number of advanced programming language features such as type classes, which enable type-safe operator overloading. Haskell is an open-source project of more than twenty years of scientific research and provides built-in concurrency and parallelism, debuggers, profilers and rich libraries that can be used to build robust applications while following functional programming patterns.

A family of programming languages dating back to 1958. Lisp is the second-oldest high-level programming language in widespread use today.

PHP is a popular free and open-source general-purpose scripting language. The language was created by Danish-Canadian programmer Rasmus Lerdorf in 1994. PHP is fast, flexible and pragmatic and is especially suited to web development. It is utilised by individual developers and large corporations like facebook, where it powers backend services.

Perl is a family high-level, general-purpose, interpreted, dynamic programming languages. The project is open-source and has been in community development for over 30 years. Perl is a highly capable language and feature rich language with over 25,000 community created extensions.

A modern, dynamic, and functional dialect of the Lisp and programming language that targets the JVM (Java Virtual Machine). Clojure is a compiled language, yet remains completely dynamic as it combines the approachability and interactive development of a scripting language with an efficient and robust infrastructure for multithreaded programming. The development of Clojure is completely community-driven, while being overseen by its creator Rich Hickey.

A dynamic, functional programming language that tuns on top of the Erlang Virtual Machine. A VM known for running low-latency, distributed and fault-tolerant systems. Elixir provides productive tooling and an extensible design perfect for building concurrent applications for critical infrastructure

Ruby is a free and open-source interpreted, high-level, general-purpose programming language. The language was created by Yukihiro "Matz" Matsumoto from Japan in the mid-1990s. Today, Ruby has a friendly and growing community from all over the world and is openly developed and maintained. According to its creator Yukihiro, the language share many similarities with Perl, Smalltalk, Eiffel, Ada, Basic, and Lisp, all of which Ruby was influenced by.

At Google I/O 2017, Kotlin was announced as to official development and programming language for Android. As it became the third language to be fully supported by the platform with Java and C++. However, Kotlin can also be used cross-paltform for native, server-side and web development as well as for data science projects. The language is statically typed and general-purpose, and is designed from the bottom up to increase developer happiness. 

Designed and developed by Robert Griesemer, Rob Pike, and Ken Thompson at Google. Go or Golang is a compiled programming language that is statically typed and shares similarities with C, syntactically. The programming language was specifically designed to make it easy to build simple, reliable, and efficient software with safety, garbage collection, structural typing, and CSP-style concurrency.

OCaml is a general-purpose, multi-paradigm programming language created in 1996 by Xavier Leroy, Jérôme Vouillon, Damien Doligez, Didier Rémy, Ascánder Suárez, and others. The language extends the Caml dialect of ML with object-oriented features and provides a rich set of libraries. OCaml is openly developed by the community and is used by companies that require speed and code safety when writing mission critical software.

An object-oriented, high-level, general-purpose programming language with an easy-to-learn syntax. Python was first released in 1991 by Guido van Rossum with a design philosophy that emphasises code readability. Today Python is one of the most widely used programming languages where it is used in everything from data science, machine learning and AI to modern web, mobile and desktop applications.