Browse free open source JavaScript Interpreters and projects below. Use the toggles on the left to filter open source JavaScript Interpreters by OS, license, language, programming language, and project status.

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  • 1
    Whitebeam Web Application Server

    Whitebeam Web Application Server

    JavaScript/XML engine for Apache

    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.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 2
    Waxeye is a parser generator based on parsing expression grammars (PEGs). It supports C, Java, Javascript, Python, Ruby and Scheme.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 3
    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.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4
    V1 Script

    V1 Script

    A Script Language for Web, Linux and Windows

    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.
    Downloads: 4 This Week
    Last Update:
    See Project
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  • 5
    several vaguely related projects worked on by me: a 3d engine with a javascript-like scripting language (pdsys); an older scheme dialect (vmsys); ... (2009-04-28: I have been gone for years, may try to put up some newer stuff...).
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6
    KAREL 3D

    KAREL 3D

    Learning programming language for kids

    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/
    Downloads: 3 This Week
    Last Update:
    See Project
  • 7
    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.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    Xemeiah is a fast, modular and scalable XML Framework written in C++, with an efficient DOM and Oasis-compliant XSLT Processor. Xemeiah modules include a persistence layer, a fast Ajax Web Server, a Media Player, ImageMagick frontend, java bindings...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    wxJavaScript is renamed in GLUEscript, so a next release will be available on http://gluescript.sf.net. In the meantime, if you find any problems on the latest release, you can still use this website.
    Downloads: 3 This Week
    Last Update:
    See Project
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  • 10

    Jainja

    Jainja is a JVM (Java Virtual Machine) written in Java

    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.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    KAREL 3D WebGL

    KAREL 3D WebGL

    Children's learning programming language Karel the Robot in 3D

    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/
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    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.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    VDMPad

    VDMPad

    a simple Web IDE for VDM-SL

    VDMPad is a simple Web IDE server for VDM-SL based upon VDMJ and Squeak Smalltalk. You can launch a VDMPad Server on your Mac or Linux PC and open "http://localhost:8085" with your browser. Although VDM does NOT run on Windows platforms, you can use Windows/iOS/Android devices to open VDMPad running on Mac or Linux server.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    Smith is an open source, cross-platform ColdFusion® engine, written entirely in Java. Running on top of Java Runtime Environment and Java Servlet Container, it can be deployed virtually on any operating system and work with any web server.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    A perl script that parses given JavaScript source files for documentation in JavaDoc style, and generates HTML description page about functions, its parameters, etc.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    A simple, intuitive Javascript keyboard for Indic Languages such as Hindi, Sanskrit and Gujarati, based on Unicode characters.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    NetScripter is a web-based cross-browser interpreter compatible with NScripter, it is suitable for presentations, games and interactive webpages.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    SpiderApe is a C++ wrapper around SpiderMonkey, Mozilla's C-based JavaScript engine (http://mozilla.org/js). It takes advantage of C++'s features to simplify the process of embedding SpiderMonkey into your C++ applications.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    A C++ library which enables seamless interoperability between C++ and interpreted languages such as javascript. Based loosely on the boost.python project. A separate javascript parser is supplied.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    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\".
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
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