Alternatives to REBOL for all platforms with any license

Python

Python is an interpreted, interactive, object-oriented, extensible programming language. It provides an extraordinary combination of clarity and versatility, and is free...

Free Open Source Mac Windows Linux S60 BSD ... AROS Haiku AmigaOS OpenSolaris MorphOS
High Level Object-oriented Language Dynamic typing Garbage Collection ... Modular System Object-oriented Language PIP (package installer) Rad Add a feature

1115 Like
PHP

PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

Free Open Source Mac Windows Linux BSD PHP
Object-oriented Language Scripting language Add a feature

409 Like
Node.js

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking...

Free Open Source Mac Windows Linux Chrome OS BSD ... Self-Hosted
Node Based Runtime environment Server-side Add a feature

245 Like
C (programming language)

C is a general-purpose computer programming language. C is one of the most widely used programming languages of all time.

Free Open Source Mac Windows Linux Android iPhone ... Android Tablet BSD iPad AROS Android Wear Haiku Playstation
Compiled Language Inline assembly Manual memory management Systems programming Add a feature

270 Like
C++

C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose, powerful programming language. It is regarded as an intermediate-level language, as it...

Free Open Source Mac Windows Linux BSD
Compiled Language Object-oriented Language Systems programming Add a feature

263 Like
Ruby

Ruby is a dynamic, reflective, general purpose object-oriented programming language that combines syntax inspired by Perl with Smalltalk-like features. Ruby originated...

Free Open Source Mac Windows Linux BSD Haiku
Blocks Dynamic typing Object-oriented Language Package Manager ... Text processing Add a feature

241 Like
C#

C# is a multi-paradigm programming language encompassing strong typing, imperative, declarative, functional, generic, object-oriented (class-based), and...

Free Open Source Mac Windows Linux BSD
Compiled Language Object-oriented Language Add a feature

176 Like
Lua

Lua is a powerful, fast, lightweight, embeddable scripting language. Lua combines simple procedural syntax with powerful data description constructs based on...

Free Open Source Mac Windows Linux Android iPhone ... Android Tablet BSD iPad Android Wear Haiku AmigaOS Playstation MorphOS
Scripting language Scripting Add a feature

144 Like
Go (Programming Language)

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Free Open Source Mac Windows Linux BSD
Class inheritance Compiled Language Performance Monitoring Add a feature

97 Like
Perl

Perl is a high-level, general-purpose, interpreted, dynamic programming language with over 22 years of development. The Perl languages borrow features from other...

Free Open Source Mac Windows Linux BSD Haiku
Shell integration Add a feature

122 Like
Dart

Dart (originally called Dash) is a Web programming language developed by Google. It was unveiled at the GOTO conference in Aarhus, 2011 October 10-12. The goal of Dart...
- Does not have the main features of REBOL (light weight, browser independent) Guest • Sep 2016
Free Open Source Mac Windows Linux Web
No features added Add a feature

64 Like
Nim (programming language)

Nim is a statically typed, imperative programming language with a powerful macro system that tries to give the programmer ultimate power without compromises on runtime...

Free Open Source Mac Windows Linux BSD
Compiled Language Compiler Imperative Language Lisp-like ... Object-oriented Language Open source software Add a feature

27 Like
Scala

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...

Free Open Source Mac Windows Linux BSD
Compiled Language Compiler Functional Language Object-oriented Language Add a feature

61 Like
Apple Swift

Swift is a programming language for iOS, OS X, watchOS and tvOS apps that builds on the best of C and Objective-C, without the constraints of C compatibility. Swift...

Free Open Source Mac Linux
Compiler Object-oriented Language Scripting Scripting language Add a feature

30 Like
ASP.NET

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...

Free Windows
Rad Server-side Add a feature

29 Like