Open Source JavaScript Interpreters

Jainja is a JVM (Java Virtual Machine) written in Java. The VM is developed by using the smallest possible subset of Java in order to run on top of multiple environments : Java SE, JavaME, Android, Javascript, and even natively.

JLog is a Prolog interpreter written in Java. It is fast and perfectly suited for education. It includes source editor, query panels, online help, animation primitives, and a GUI debugger. JScriptLog is Prolog in JavaScript.

KAREL 3D written in JavaScript with WebGL is a children's programming language for teaching algorithms. This is later variant from Karel the Robot in 3D, created in 1986 for 8bit microcomputer PMD 85-2. Support full recursion, create new commands, complex commands with condition from dialog and direct control with keys, language translation. Objects: brick, wall, mark, fence. Check out the Wiki (here) for more examples and pictures. Include ZIP with original historical manuals in Slovak language from years 1987 - 1990 Writen in HTML for fast universal use, including JavaScript code with Three engine. After download and unzip, runable (run html file) without installation in internet browser. Tested in EDGE and Chrome. Version without WebGL, and just as one file (+ include examples in text file): https://sourceforge.net/projects/karel-3d/ C++ version: https://sourceforge.net/projects/karel-3d-cpp/

Whitebeam is a complete rapid development Web application server integrating Apache, Posgresql, Mozilla's SpiderMonkey JavaScript engine with it's own powerful XML/XPath based secure application framework.

Seppia is a simple Java technology for building an application from constituent parts. Seppia will challenge the way you think of Java based component computing.

This is learning programming language for children Karel-3D. By words from LightBot: "Get kids hooked on coding with minutes!" Created by Karel 3D from the 8-bit microcomputer PMD 85-2 in 1986. His later version of Karel the Robot in 3D, created first in the Slovak Republic. JavaScript variant include only one small HTML file tested and works on all devices with keyboard and full JavaScript support in internet browser, or alternative pre-compiled JAVA V8 .jar file with webEngine and JavaFX and code in string. ZIP Contains examples in TXT file. More pictures and examples is here at Wiki. Wiki include ZIP with scan of original historical manuals in Slovak language from years 1987 - 1990 Today exist some variants (not mine) like: LightBot or Swift Playgrounds on tablets. Karel 3D from Version 8 is different from other Karels, can bulid a Bridges. WebGL version: https://sourceforge.net/projects/karel-3d-webgl/ C++ version: https://sourceforge.net/projects/karel-3d-cpp/

NJS is an independent implementation of the JavaScript language developed by Netscape and standardized by ECMA. It is designed to be re-entrant, extendible, fast, and programmable.

RockScript is the world's smallest Java-based JavaScript interpreter, runs smoothly in any J2ME phones. The binary size of core engine including native objects/methods is less than 25K (obfuscated & JAR'ed). It can be integrated into any J2ME apps.

V1 is a simple functional interpreter language with syntax from C, PHP and JavaScript. It was developed from the scratch. The focus is on simple administrative and experimental programming, but it has enhanced benefits like Multithreading, CGI, Web functions and Native function calling. The most buildin functions are compatible with PHP, for example fopen(). The current Version 0.96 is available for Windows (32 Bit, WinXP, Win7, Win10+), Linux (x86, 64 Bit, libc 2.2) and Linux (ARM, 32 Bit, libc 2.28). Tested ARM systems: Raspberry Pi Zero, Banana Pi Zero.

Waxeye is a parser generator based on parsing expression grammars (PEGs). It supports C, Java, Javascript, Python, Ruby and Scheme.

nScriptHost is a .NET library that supports VBScript and JScript. It allows developers to integrate scripting into their applications and expose objects from the application to the scripting engine so that scripts can interact with the application.

Askari is a custom version of the Mozilla Rhino Javascript Engine optimized for use in standalone applications and servlets. It is easily extensible either with Java libraries (SWT is bundled) or by adding to the included JavaScript library framework.

The project aims to extend the PHP scripting language to enable PHP developers to write bioinformatics applications more rapidly than if they had to start from scratch using \"vanilla php\".

Are you a fan of FORTH/RPN math? Need an easy, quick way to access files, do calculations, or just about anything else on your computer? Enter CUE (abrv. Q). Optimized for short, quick programs this language can be used for many different chores.

The DCN Toolkit contains the DCN Interpreter for processing XML datastreams in a CORBA/ECMA compliant environment. See http://www.dataconsortium.org for information about the Data Consortium Namespace and its RDF Dictionary.

A perl script that parses given JavaScript source files for documentation in JavaDoc style, and generates HTML description page about functions, its parameters, etc.

ESA Provides a wrapper around the .NET scripting engine which adds support for hosting the scripting engine in a seperate AppDomain, and includes a Design-time environment for applications.

ESMJS, Enhanced SpiderMonkey JavaScript, (will) provide an easy way to integrate Javascript Plugins into C applications.

Clean, small, ECMA-262 compliant core javascript interpreter written in c++.

The Esoteric Project is a project devoted to providing interpreters and/or compilers for every Turing-complete Esoteric Programming Language.

Javascript bindings for C++, a Javascript interpreter/shell & Javascript/C++ module system. It includes a few Javascript classes and modules. It supports easy embedding of Javascript in C++ and vice versa. The currently supported engine is Spidermonkey.

Hellsing is a distributed JavaScript engine.

A simple, intuitive Javascript keyboard for Indic Languages such as Hindi, Sanskrit and Gujarati, based on Unicode characters.

Put Java code embedded in your HTML pages, executed client-side (as old JavaScript) with all its power and ease of use (a lot MORE than old JavaScript)!!!

JFolder is a web-based application development and management tool. It allows users to create applications through a web browser without writing any code. The current release includes an implementation of the Pet Store written without code.