Apps similar to RapydScript include JavaScript, which is free and open source. Other options are TypeScript, CoffeeScript, Babel and ReScript. You can choose from more than 10 Programming Languages like RapydScript for Windows, Linux, Mac, the web and self-hosting.
JavaScript (sometimes shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, most known as the scripting language for Web pages, but also used in many non-browser environments.
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TypeScript is a language for application-scale JavaScript development. It is a typed superset of JavaScript that compiles to plain JavaScript in any browser, any host, any OS and it is Open Source.
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CoffeeScript is a little language that compiles into JavaScript. Underneath all those awkward braces and semicolons, JavaScript has always had a gorgeous object model at its heart. CoffeeScript is an attempt to expose the good parts of JavaScript in a simple way.
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ReScript is a robustly typed language that compiles to efficient and human-readable JavaScript. It comes with a lightning fast compiler toolchain that scales to any codebase size.
The Bosque programming language is an experiment in regularized design for a machine assisted rapid and reliable software development lifecycle.
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LiveScript is a language which compiles down to JavaScript. It is a fork of Coco which is in turn derived from CoffeeScript. Like those two it has a relatively straightforward mapping to JavaScript. LiveScript is Coco but much more compatible with CoffeeScript, more functional...
MicroPython aims to implement the Python 3.4 standard (with selected features from later versions) with respect to language syntax, and most of the features of MicroPython are identical to those described by the “Language Reference” documentation at docs.python.org.
Australia
Kaffeine is a set of extensions to the Javascript syntax that attempt to make it nicer to use. It compiles directly into javascript that is very similar, readable and line for line equivalent to the input (you can beautify if you like).
Transcrypt is a tool to precompile a fairly extensive subset of Python into compact, readable Javascript.
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Real-Time JavaScript Tool is a portable tool that allows JavaScript codes to be executed in Real-Time!
