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

  • Simplify Purchasing For Your Business Icon
    Simplify Purchasing For Your Business

    Manage what you buy and how you buy it with Order.co, so you have control over your time and money spent.

    Simplify every aspect of buying for your business in Order.co. From sourcing products to scaling purchasing across locations to automating your AP and approvals workstreams, Order.co is the platform of choice for growing businesses.
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  • Award-Winning Medical Office Software Designed for Your Specialty Icon
    Award-Winning Medical Office Software Designed for Your Specialty

    Succeed and scale your practice with cloud-based, data-backed, AI-powered healthcare software.

    RXNT is an ambulatory healthcare technology pioneer that empowers medical practices and healthcare organizations to succeed and scale through innovative, data-backed, AI-powered software.
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  • 1
    XPHP is an IDE authoring tool for Windows that allows you to design, develop, test, debug and deploy PHP applications. [This project has been discontinued since 2005]
    Downloads: 1 This Week
    Last Update:
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  • 2
    Acheron is a Common Lisp (CL) to JavaScript (JS) compiler. Programs are written in a subset of CL and after compilation executed in a webbrowser. Acheron has native functions that are written in JS and are the bridge between CL and JS.
    Downloads: 0 This Week
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  • 3
    Z80 ASM editor that gives you real-time info about Mnemonics, Waitstates/Clock cycles, and Labels. Features code completion, real-time debugging and T-states profiling.
    Downloads: 0 This Week
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  • 4

    C-Lesh and SMW Engine

    C-Lesh is a game programming language for 2D games.

    C-Lesh is a game programming language for 2D games - mainly arcade and platform games. When combined with the Super Mario World (SMW) engine you can create awesome 2D platform games like Super Mario World. This language evolved from a "clone" of TI-BASIC which I began developing when I was having memory (segmentation fault) bugs with C. C-Lesh lacks memory allocation and destruction. There is no need to use pointers and you can never get memory leaks or program crashes caused by memory leaks. As C-Lesh is somewhat primitive you may like it if you are into C. I'd say its a step up from C for 2D games. Everything is set - all you need is a sprite sheet and some programming knowledge.
    Downloads: 0 This Week
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  • The Most Powerful Software Platform for EHSQ and ESG Management Icon
    The Most Powerful Software Platform for EHSQ and ESG Management

    Addresses the needs of small businesses and large global organizations with thousands of users in multiple locations.

    Choose from a complete set of software solutions across EHSQ that address all aspects of top performing Environmental, Health and Safety, and Quality management programs.
    Learn More
  • 5
    Closure Compiler JS

    Closure Compiler JS

    Package for the JS version of closure-compiler for use via NPM

    closure-compiler-js packages Google’s Closure Compiler so it runs under JavaScript (e.g., Node.js) instead of a JVM, making advanced JS optimization accessible in more build pipelines. You get the same aggressive whole-program optimizations—dead-code elimination, property renaming, inlining, and cross-module motion—delivered via a JS API and CLI. Because it’s the compiler you know, it also honors Closure type annotations and JSDoc, enabling type-aware rewrites that shrink bundles without breaking semantics. The distribution is geared for tool authors: plug it into bundlers, custom scripts, or CI without dragging in a Java runtime. It’s particularly handy in constrained environments (serverless, sandboxed workers) where spawning a JVM is undesirable. In short, it brings Closure’s battle-tested optimizer to the places modern JavaScript actually runs.
    Downloads: 0 This Week
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  • 6
    Clue is an experimental C compiler that generates code for high-level dynamic languages such as Lua, Javascript, Perl5 and Common Lisp, as well as non-dynamic languages like C and Java. It supports the complete ANSI standard, including pointer arithmetic
    Downloads: 0 This Week
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  • 7

    Compilador C

    Compilador de lenguaje de programación C online

    Compilador C es una aplicación creada para el departamento ELAI de la EUITI. Su objetivo es brindar una herramienta de autoaprendizaje a los alumnos del laboratorio de informatica
    Downloads: 0 This Week
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  • 8
    ECCO is a web-based IDE. In other words is an online development environment with file manager, console interface for compiling and execution of code and an editor with syntax highlighting, tabs and support for many languages and accessed with a browser
    Downloads: 0 This Week
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  • 9
    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
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  • AestheticsPro Medical Spa Software Icon
    AestheticsPro Medical Spa Software

    Our new software release will dramatically improve your medspa business performance while enhancing the customer experience

    AestheticsPro is the most complete Aesthetics Software on the market today. HIPAA Cloud Compliant with electronic charting, integrated POS, targeted marketing and results driven reporting; AestheticsPro delivers the tools you need to manage your medical spa business. It is our mission To Provide an All-in-One Cutting Edge Software to the Aesthetics Industry.
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  • 10
    The Esoteric Project is a project devoted to providing interpreters and/or compilers for every Turing-complete Esoteric Programming Language.
    Downloads: 0 This Week
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  • 11
    Extended HTML is an extension to HTML based on XML, PHP, SQL and JavaScript technologies. The compiler is written in PHP 5 (so it can be deployed on a web page) and allows the developper to create in one file objets used both on client and server side.
    Downloads: 0 This Week
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  • 12
    Grain

    Grain

    The Grain compiler toolchain and CLI, home of the modern web staple

    Grain is a new language that puts academic language features to work. Enter the future. Grain compiles directly to WebAssembly, taking full advantage of its speed and efficiency. No runtime type errors, ever. Every bit of Grain you write is thoroughly sifted for type errors, with no need for type annotations. Grain has its roots in functional programming, but is flexible enough to accommodate different programming styles for various applications. Grain aims to modernize innovative features from functional and academic programming languages and bring them to the masses. Many languages have had wonderful ideas, but they have ultimately been dismissed as esoteric or too difficult to learn and, consequently, have struggled to rally a large community around them. Grain hopes to bring new life to these ideas and present them in an accessible form that’s easy to use and understand.
    Downloads: 0 This Week
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  • 13
    Hogan.js

    Hogan.js

    A compiler for the Mustache templating language

    Hogan.js is a 2.5k JS templating engine developed at Twitter. Use it as a part of your asset packager to compile templates ahead of time or include it in your browser to handle dynamic templates. If you're developing with Node.js, just use NPM to add the Hogan package. Hogan.js was developed against the mustache test suite, so everything that holds true for templates is also the case for hogan.js. That means you get variables, sections, lambdas, partials, filters, and everything else you've come to expect from mustache templating, only much, much faster. Use hogan.compile() to precompile your templates into vanilla JS. It's best to serve your templates precompiled whenever you can (rather than the raw templates), as parsing is the most time consuming operation. Once compiled, call the render() method with a context and optional partials object. If supplying partials, you can compile them ahead of time, or pass string templates.
    Downloads: 0 This Week
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  • 14

    Ino-L

    Simple programming language for Windows.

    Ino-L is a TUI programming language for Windows that compiles into MS-DOS batch files. Ino-L stands for Innova Language, because Innova is French for innovation. The purpose of the language is to allow programmers the same functionality and abilities of batch files, but with simpler syntax and limited GUI, along with other things MS-DOS does not natively support. Your MS-DOS code can also be incorporated into the Ino-L source code, along with JavaScript and VisualBasic.
    Downloads: 0 This Week
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  • 15
    JSGold is a GOLD Parser Engine in C++ for generating context-free grammar parsers in javascript.
    Downloads: 0 This Week
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  • 16
    This is an Eclipse plugin based on JSMin Javascript minifier. It adds an Ant task called jsminify that copies Javascript files and minifies them while copying, thus leaving the sources intact.
    Downloads: 0 This Week
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  • 17
    This is a JavaScript to Scheme translator written entirely in Scheme. Currently tested only with Guile
    Downloads: 0 This Week
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  • 18
    JavaScriptFlash: Compiling JavaScript to SWF JavaScriptFlash is a web-based platform to support the JavaScript web programmers to develop Flash applications in JavaScript. It compiles the JavaScript code following certain rules into a Flash SWF file
    Downloads: 0 This Week
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  • 19
    Multimethods for .NET: Makes multi-methods available to *any* language that targets .NET - C#, VB.NET, JScript.NET, Managed C++ and the rest! Uses .NET dynamic assemblies and shows how to generate dynamic .NET types and IL at runtime.
    Downloads: 0 This Week
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  • 20
    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: 0 This Week
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  • 21
    Narrative JavaScript is a small extension to the JavaScript language that enables blocking capabilities for asynchronous operations. This makes writing asynchronous code sequences easier and increases code readability.
    Downloads: 0 This Week
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  • 22
    Abacus Technologies Relational XQuery is an XQJ compatible XQuery processor that provides the ability to execute XQuery against both relational and XML data sources. Relational data can be transformed to any XML schema using XQuery's powerful features.
    Downloads: 0 This Week
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  • 23
    Rev = Really Easy Validation - write your form validation code once in this simple and powerful language that generates code for JavaScript, Perl, PHP, and Java. With Rev you get server side and client side data validation with no duplicated code.
    Downloads: 0 This Week
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  • 24
    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: 0 This Week
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  • 25
    Picture Gallery viewable with HTML web browsers. All dynamics is implemented at client-side in JavaScript. This approach is useful when the server side is able to provide only static contents, or if the gallery is stored on CDROM or other media.
    Downloads: 0 This Week
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