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.

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • MongoDB Atlas | Run databases anywhere Icon
    MongoDB Atlas | Run databases anywhere

    Ensure the availability of your data with coverage across AWS, Azure, and GCP on MongoDB Atlas—the multi-cloud database for every enterprise.

    MongoDB Atlas allows you to build and run modern applications across 125+ cloud regions, spanning AWS, Azure, and Google Cloud. Its multi-cloud clusters enable seamless data distribution and automated failover between cloud providers, ensuring high availability and flexibility without added complexity.
    Learn More
  • 1

    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: 12 This Week
    Last Update:
    See Project
  • 2
    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: 7 This Week
    Last Update:
    See Project
  • 3
    The plugin arranges runtime environment for executing scripts that manage Far Manager using Far API object model. The scripts may be written in any language that support Active Scripting technology.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4
    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
  • Picsart Enterprise Background Removal API for Stunning eCommerce Visuals Icon
    Picsart Enterprise Background Removal API for Stunning eCommerce Visuals

    Instantly remove the background from your images in just one click.

    With our Remove Background API tool, you can access the transformative capabilities of automation , which will allow you to turn any photo asset into compelling product imagery. With elevated visuals quality on your digital platforms, you can captivate your audience, and therefore achieve higher engagement and sales.
    Learn More
  • 5
    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: 1 This Week
    Last Update:
    See Project
  • 6
    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
  • 7
    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
  • 8
    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
  • 9
    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: 0 This Week
    Last Update:
    See Project
  • Powering the best of the internet | Fastly Icon
    Powering the best of the internet | Fastly

    Fastly's edge cloud platform delivers faster, safer, and more scalable sites and apps to customers.

    Ensure your websites, applications and services can effortlessly handle the demands of your users with Fastly. Fastly’s portfolio is designed to be highly performant, personalized and secure while seamlessly scaling to support your growth.
    Try for free
  • 10
    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
  • 11
    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: 0 This Week
    Last Update:
    See Project
  • 12
    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
  • 13
    ESMJS, Enhanced SpiderMonkey JavaScript, (will) provide an easy way to integrate Javascript Plugins into C applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Clean, small, ECMA-262 compliant core javascript interpreter written in c++.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    The Esoteric Project is a project devoted to providing interpreters and/or compilers for every Turing-complete Esoteric Programming Language.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17

    Hellsing

    Distributed JavaScript Engine

    Hellsing is a distributed JavaScript engine.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    A simple, intuitive Javascript keyboard for Indic Languages such as Hindi, Sanskrit and Gujarati, based on Unicode characters.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    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)!!!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    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: 0 This Week
    Last Update:
    See Project
  • 22
    This project implements turtle graphics in Javascript, with the intent to help teach young children the basics about programming.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    JSGold is a GOLD Parser Engine in C++ for generating context-free grammar parsers in javascript.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    A Javascript MSX-BASIC translator. Run simple MSX-BASIC code directly in the browser, or even embed MSX-BASIC programs on your website :)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Please visit our website at http://www.8ung.at/javafusion for more information.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • Next
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.