Racket

Functional and contractual programming language, with strong, dynamic and reflective typing, derived from Scheme

1995Appeared

dynamic typing, strong typingType system

9.0Latest version

Facts

Appeared: 1995
Type system: dynamic typing, strong typing
Latest version: 9.0 (November 22, 2025)
Kind: multi-paradigm programming language, modular programming language, procedural programming language, functional programming language, object-based language
Paradigms: reflective programming, procedural programming, functional programming, multi-paradigm programming, modular programming, language-oriented programming, metaprogramming, object-oriented programming
Developer: Matthias Felleisen
File extensions: .plt .rkt .rktd .rktl .scm .ss
Licence: multi-licensing